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BMW Differential and Gearing Upgrades

Upgrading various parts of the differential can have tremendous benefits in your car's performance. It's easy to forget that the differential is a source for making your car faster and handle better so it's often overlooked. The engine is not the only place to make the car faster. Our differential options vary from gearing upgrades to limited slip conversions. You can purchase the ring & pinion gear sets on their own (professional installation required) or have us build a diff around your own specifcations. The options are almost endless! Every custom-built diff is fully rebuilt with seals and bearings. We also design and supply bushing options to reduce driveline wind-up, finned differential covers for better cooling, and more!

Ratio Changes - Changing the differential gearing is one of the best and most-effective upgrades you can make on any BMW (old or new). By using a shorter (numerically higher) final drive ratio you are increasing your RPM relative to road speed - this puts you in a more powerful RPM range than before! Since you're in a 'meatier' part of the power band you're now putting down more power/torque to the ground. If you can trade outright top speed for faster acceleration at daily speeds then this is the perfect upgrade for you.

Limited Slip Upgrades - Sadly, many BMWs today are not equipped with a limited slip (posi-traction) differential. BMW has tried to compensate by using traction control that cuts power at the engine or applies the brakes to retard wheel spin (or a combination of both). But nothing beats the function and feel of a a true LSD which may be why BMW continues to use them in M cars. Our LSD upgrades can be done a number of different ways - a factory-type limited slip unit with either 2 or 3 clutch packs, helical type, OS Giken unit, or something truly custom. We can also vary ramp angles and setup to change the limited-slip behavior under acceleration, deceleration, and cornering. Need a custom diff? Call or e-mail to have a quote.

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Powerflex Differential Dual-Mount Bushing & Bracket Set - Track Bushi...
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Powerflex - Corporate Logo
T#:44835449
Part#: PFR54030BKT
In Stock
$ 935.99 USD
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Lock your differential down with this complete kit featuring Powerflex's Dual-Mount bracket and race/track bushings
Genuine BMW Front And Rear Differential Service Kit
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Genuine BMW - Corporate Logo
T#:577470
Part#: 075122939722KT
In Stock
$ 89.99 USD
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$ 89.99 USD
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2.81 Pumpkin With Helical LSD
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Team MFactory - Corporate Logo
T#:25573478
Part#: MF-TRS-05E92DKT
Ships in 4 Business Days
$ 2,689.99 USD
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$ 2,689.99 USD
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PowerFlex Rear Diff Rear Mount Bushing - E36 - M42, M44, M50, M52, S5...
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Powerflex - Corporate Logo
T#:54281641
Part#: PFR5-326H
Ships in 1 Business Day
New Item
$ 139.99 USD
$ 139.99 USD
The Powerflex Heritage Collection replaces the soft factory unit with an engineered, high-performance polyurethane compound. It is designed to constrain differential rotation and stabilize the driveline without changing the classic aesthetic of the vehicle undercarriage.
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BMW E21 Rear Diff Mounting Bushing
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Powerflex - Corporate Logo
T#:54352781
Part#: PFR5-1625H
Ships in 1 Business Day
New Item
$ 89.99 USD
$ 89.99 USD
Performance Polyurethane Rear Differential Bushings
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Powerflex - Corporate Logo
T#:54317180
Part#: PFR5-324
Back Ordered
New Item
$ 51.99 USD
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Metal Plate Limited-Slip Differential - 1.0 Way
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Team MFactory - Corporate Logo
T#:379404
Part#: MF-TRS-10E90
Ships in 6 Business Days
$ 999.99 USD
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$ 999.99 USD
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The best way to gain a prominent advantage over the competition is to do it with the MFactory Metal Plate Limited Slip Differential. The smooth consistent distribution of power to the wheels with the MFactory Plate LSD puts the power-to-the-ground and maximises your vehicle's traction. This 1-way differential will provide torque transfer only during acceleration. This set up works the best for the drag race minded drivers. What exactly does an LSD do you ask? Well without an LSD your car is actually 1 wheel drive, in that it can't supply torque to both wheels at the same time and will only supply torque to the wheel with less grip, which is what the shortfall is to an open differential (what most vehicles have). An LSD only lets the wheels spin at different speeds by a limited amount (typically this is a percentage difference) which is when the differential locks and both wheels get power. This is not how locked differentials work such as in off road trucks which supply equal torque and rotational speed to both rear wheels at the same time, which can cause issues with handling. Features: Forged and Cryo-Tempered for unsurpassed toughness Advanced Shot Peening technology for increased surface hardness Coil Spring preload system ensures minimal power loss and maximum response Lower initial pressure ensures maximum durability and chatter-free operation Fully rebuildable with adjustable lock (80-100%) and option for different cam types Cam type provides the option for 2 distinct levels of initial torque transfer Available in 1.0, 1.5, and 2.0 way options
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Metal Plate Limited-Slip Differential - 1.0 Way
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:379409
Part#: MF-TRS-10E46
Ships in 6 Business Days
$ 999.99 USD
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$ 999.99 USD
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The best way to gain a prominent advantage over the competition is to do it with the MFactory Metal Plate Limited Slip Differential. The smooth consistent distribution of power to the wheels with the MFactory Plate LSD puts the power-to-the-ground and maximises your vehicle's traction. This 1-way differential will provide torque transfer only during accelleration. This set up works the best for the drag race minded drivers. What exactly does an LSD do you ask? Well without an LSD your car is actually 1 wheel drive, in that it can't supply torque to both wheels at the same time and will only supply torque to the wheel with less grip, which is what the shortfall is to an open differential (what most vehicles have). An LSD only lets the wheels spin at different speeds by a limited amount (typically this is a percentage difference) which is when the differential locks and both wheels get power. This is not how locked differentials work such as in off road trucks which supply equal torque and rotational speed to both rear wheels at the same time, which can cause issues with handling. Features: Forged and Cryo-Tempered for unsurpassed toughness Advanced Shot Peening technology for increased surface hardness Coil Spring preload system ensures minimal power loss and maximum response Lower initial pressure ensures maximum durability and chatter-free operation Fully rebuildable with adjustable lock (80-100%) and option for different cam types Cam type provides the option for 2 distinct levels of initial torque transfer Available in 1.0, 1.5, and 2.0 way options *Any defects or warranty clams will have to go directly to Team M Factory*
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Front Differential Input Shaft Seal
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Corteco - Corporate Logo
T#:594926
Part#: 31521428678
Ships in 1 Business Day
$ 17.99 USD
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Seals the input shaft flange to the front differential

Quaife Torque Biasing Differential for Cooper S - (NO LONGER AVAILABL...
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Quaife - Corporate Logo
T#:7
Part#: TMS7
Ships in 3 Business Days
$ 1,732.99 USD
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As Used on our Project Mini Cooper S
The Quaife torque biasing differential enables your car to accelerate quicker and corner faster. How? By getting the power to the ground! The Quaife Differential powers both drive wheels under nearly all conditions, instead of just one. With an ordinary open differential, standard on all MINI's, a lot of precious power is wasted during wheelspin under acceleration. This happens because the open differential shifts power to the wheel with less grip (along the path of least resistance). The Quaife, however, does just the opposite. It senses which wheel has the better grip, and biases the power to that wheel. It does this smoothly and constantly, and without ever completely removing power from the other wheel.
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Complete Xdrive Differential And Transfer Case Service Kit - E90, E91...
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Packaged by Turner - Corporate Logo
T#:42099854
Part#: 07512293972T3KT
In Stock
Sale - Save 12% $ 303.99

This product was last offered at the strikethrough price on
05-03-2026

$ 268.70 USD
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Sale - Save 12%
$ 303.99

This product was last offered at the strikethrough price on
05-03-2026

$ 268.70 USD
Free Shipping on orders $49 and up
Maintain smooth power distribution, protect your drivetrain, and extend the life of your BMW xDrive system with the Complete Xdrive Differential And Transfer Case Service Kit - E90, E91, E92, E60, E61, E70.
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Rear Differential Bushing - Priced Each
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Corteco - Corporate Logo
T#:594920
Part#: 33171134872
Ships in 1 Business Day
$ 19.99

This product was last offered at the strikethrough price on
05-07-2026

$ 16.99 USD
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$ 16.99 USD
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The subframe provides mounting for your rear suspension. The subframe connects to the body with bushings to absorb vibration at all mounting locations. These bushings absorb any vibration that would normally be transmitted to the cabin and keep the subframe solid. They also provide a solid mounting location to keep everything tight.
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Powerflex Black Series BMW F10/F07 Rear Diff Rear Mount Bushing ...
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Powerflex Black Series - Corporate Logo
T#:33880006
Part#: PFR5-6031BLK
Ships in 1 Business Day
$ 76.99 USD
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The BMW F10/F07 Rear Diff Rear Mount Bushing by Powerflex is a specialized upgrade designed to replace the OEM rubber bushings in the rear differential mount. Here's a breakdown of its key features and benefits:

  1. Durability and Longevity: Made from high-quality polyurethane, these bushings are significantly more resistant to wear compared to the stock rubber, which tends to degrade over time due to heat, oils, and mechanical stress.

  2. Enhanced Performance: The stiffer material reduces flex in the rear differential, ensuring more precise power transfer to the wheels. This results in better acceleration response, reduced wheel hop, and improved handling characteristics, especially during aggressive driving.

  3. Reduced Differential Movement: The stock bushings can allow excessive differential movement under load, leading to a less stable rear end. The Powerflex bushings minimize this movement, enhancing the overall driving dynamics.

  4. Balanced Comfort and Performance: While polyurethane bushings are firmer than rubber, Powerflex designs their bushings to maintain a balance between performance and comfort. This means less increase in vibration, noise, and harshness (NVH) compared to other aftermarket bushings, making them suitable for both daily driving and performance applications.

  5. Custom Fit for BMW F10/F07: Specifically engineered for the BMW 5 Series (F10) and BMW 5 Series GT (F07), these bushings offer a precise fit, ensuring easy installation and compatibility with factory components.

Overall, the Powerflex Rear Diff Rear Mount Bushing is a go-to upgrade for those looking to improve their BMW’s rear-end stability, responsiveness, and durability without sacrificing too much comfort.

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Powerflex BMW F10/F07 Rear Diff Front Bushing
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Powerflex Black Series - Corporate Logo
T#:33880011
Part#: PFR5-6032BLK
Ships in 1 Business Day
$ 121.99 USD
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The BMW F10/F07 Rear Diff Front Mount Bushing from Powerflex is a performance-enhancing replacement part designed for the rear differential mounting system. Here are its main features: Polyurethane Construction for Longevity: Made from high-quality polyurethane, these bushings outperform traditional rubber bushings by resisting wear from heat, oils, and road contaminants. This means they provide a longer service life, reducing the need for frequent replacements. Enhanced Power Transfer: By limiting excess differential movement, the stiffer Powerflex bushings allow more precise power transfer to the rear wheels. This results in sharper throttle response and improved overall drivetrain efficiency, especially during spirited driving. Increased Rear-End Rigidity: The factory rubber bushings allow for some differential movement, which can lead to instability. The Powerflex bushings reduce this flex, resulting in a more stable and predictable rear end, particularly when cornering or under heavy acceleration. Improved Handling and Stability: With reduced play in the differential mounting points, the rear suspension geometry stays more consistent. This translates to sharper handling, better grip in corners, and a more connected driving experience, making the vehicle feel more composed. Controlled NVH (Noise, Vibration, and Harshness): Powerflex engineers their bushings to strike a balance between performance and comfort. While polyurethane is stiffer than rubber, these bushings are designed to minimize the increase in NVH, ensuring that the ride remains comfortable for daily driving while still benefiting from enhanced performance. Direct Fitment for BMW F10/F07: These bushings are specifically designed for the BMW 5 Series (F10) and BMW 5 Series GT (F07), providing an easy, direct replacement for the original equipment. This ensures compatibility and smooth installation. The Powerflex Rear Diff Front Mount Bushing is ideal for BMW enthusiasts seeking to upgrade their vehicle's rear differential stability and performance, particularly for high-performance driving or in modified cars.
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PowerFlex Rear Diff Front Mount Bushing - E36 - M4, M44, M50, M52, S5...
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Powerflex - Corporate Logo
T#:54281644
Part#: PFR5-325H
Back Ordered
New Item
$ 44.99 USD
$ 44.99 USD
The Powerflex Heritage Series is a premium motorsport upgrade engineered to eliminate critical differential deflection. Molded from an advanced, proprietary polyurethane formula, this bushing stabilizes the differential nose under high-torque loading.
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Metal Plate Limited-Slip Differential - 1.5 Way
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Team MFactory - Corporate Logo
T#:379401
Part#: MF-TRS-10E46A
Ships in 6 Business Days
$ 999.99 USD
Free Shipping
$ 999.99 USD
Free Shipping
The best way to gain a prominent advantage over the competition is to do it with the MFactory Metal Plate Limited Slip Differential. The smooth consistent distribution of power to the wheels with the MFactory Plate LSD puts the power-to-the-ground and maximises your vehicle's traction. This 1.5-way differential works similar to a 2-way in that it provides torque transfer during both accelleration and decelleration. However, the advantage over a 2-way is that it requires less force to lock the differential. This means that it will allow for different wheel speeds, like when cornering. A 1.5-way differential is typically the best option for track or street use, as it keeps from having one tire skipping or dragging. What exactly does an LSD do you ask? Well without an LSD your car is actually 1 wheel drive, in that it can't supply torque to both wheels at the same time and will only supply torque to the wheel with less grip, which is what the shortfall is to an open differential (what most vehicles have). An LSD only lets the wheels spin at different speeds by a limited amount (typically this is a percentage difference) which is when the differential locks and both wheels get power. This is not how locked differentials work such as in off road trucks which supply equal torque and rotational speed to both rear wheels at the same time, which can cause issues with handling. Features: Forged and Cryo-Tempered for unsurpassed toughness Advanced Shot Peening technology for increased surface hardness Coil Spring preload system ensures minimal power loss and maximum response Lower initial pressure ensures maximum durability and chatter-free operation Fully rebuildable with adjustable lock (80-100%) and option for different cam types Available in 1.0, 1.5, and 2.0 way options *Any defects or warranty clams will have to go directly to Team M Factory*
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Dual Mount Differential Bracket - BMW F80 / F82 / F83 / F87 - M4 / M3...
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Revshift - Corporate Logo
T#:44597346
Part#: DBK-F8X-NONE
Ships in 7 Business Days
$ 279.00 USD
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Powerflex Performance Polyurethane Differential Bushing - E21 320i ...
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Powerflex - Corporate Logo
T#:554702
Part#: PFR5-1625X2
Ships in 1 Business Day
$ 89.99 USD
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$ 89.99 USD
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Differential bushings are responsible for keeping the differential in solid alignment while dampening drivetrain vibration. While OE rubber bushings are fine when they are new from the factory, aged and worn out rubber bushings create a multitude of issues that can range from annoying to dangerous. As a factory bushing ages, it begins to harden and become brittle. When this happens the bushing will actually shrink and allow for movement at the differential mounting point. At this point, the differential is free to shift under load causing a noticeable clunking noise under acceleration and deceleration and massively increasing the stress on the driveshaft and axles. Manual transmissions suffer the worst from this as it can make shifting difficult since the differential will shift when the clutch is engaged and disengaged.

By replacing these bushings with full polyurethane, the movement is eliminated since the mounting point is supported by a much stiffer material that will not harden or shrink over time. This means less stress on the driveshaft and axles and greater longevity of supporting components. 

Powerflex Black Series bushings are the ultimate in track and race bushings. Featuring 95A durometer polyurethane, Black Series bushings are 25% stiffer than street bushings. Engineered to perform, Powerflex performance polyurethane control arm bushings offer a supreme level of control, while still providing enough comfort for the street, with advanced polyurethane that reduces NVH that often accompanies lesser bushings. Expect improved acceleration response, more direct shifting feel and overall improved drivetrain composure with Powerflex performance polyurethane bushings.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers. 

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PowerFlex Rear Diff Front Mount Bushing - E36 M3 Evo - S50B32 ...
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Powerflex - Corporate Logo
T#:54317182
Part#: PFR5-324H
Ships in 1 Business Day
New Item
$ 51.99 USD
$ 51.99 USD
Ensure your build operates at peak mechanical efficiency. Eliminate driveline slop and secure your differential assembly with track-proven engineering.
Powerflex Rear Diff Rear Mounting Bushing - 2002
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Powerflex - Corporate Logo
T#:15710802
Part#: PFR5-2025X2
Ships in 1 Business Day
$ 89.99 USD
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Poly bushings give a provide a more connected feel between you and your vehicle via a higher durometer than stock rubber bushings. Sometimes, this can be at the expense of NVH (noise, vibration, and harshness), but if you are driving your car on the track or just commuting in a spirited manner, poly may be a good option for you!
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BMW 1502-2002 (1962 - 1977) Rear Diff Rear Mounting Bushing
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Powerflex - Corporate Logo
T#:54352762
Part#: PFR5-2025H
Ships in 1 Business Day
New Item
$ 89.99 USD
$ 89.99 USD
By stabilizing the differential's position relative to the subframe, the rear diff bushing helps maintain static axle angles under extreme loads, reducing wear on peripheral drivetrain components and providing a highly predictable, repeatable platform for track setups.
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Powerflex BMW E21 Rear Diff Mounting Bushing
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Powerflex Black Series - Corporate Logo
T#:34382163
Part#: PFR5-1625BLK
Ships in 1 Business Day
$ 97.99 USD
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The Powerflex Rear Diff Mount Bushing for the BMW E21 offers a robust solution to support and stabilize the differential, replacing the standard rubber bushings with durable polyurethane. This upgrade minimizes unwanted differential movement, enhancing driving dynamics and responsiveness.

Key Benefits:

  1. Enhanced Stability: By minimizing differential movement, Powerflex bushings ensure consistent alignment, giving better rear-end stability.
  2. Improved Longevity: Unlike rubber, polyurethane is resistant to aging and degradation from elements like oil and road debris.
  3. Responsive Handling: With reduced play in the differential mount, power transfer becomes more direct, allowing for sharper throttle response.
  4. Vibration Dampening Options: Powerflex offers options like the Black Series for motorsport applications and the standard Purple for everyday performance with minimal increase in vibration.

These bushings are popular among E21 owners who want a durable, performance-oriented solution that balances comfort and handling precision. Ideal for both spirited driving and daily use.

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BMW E36 M3 Evo - Race Differential Front Mount Bushing - Black Series...
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For European E36 M3 ONLY
Powerflex Black Series - Corporate Logo
T#:379934
Part#: PFR5-324B
Ships in 1 Business Day
$ 56.99 USD
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Differentials serve the key purpose of transmitting power from the driveshaft to the axles. Factory rubber bushings absorb some of this power to allow for cushy, comfortable acceleration, at the expense of performance. Many OEM differential bushings are fast-wearing and failure-prone, resulting in driveline slop and thunks when shifting or going over bumps. Your E36 Evo M3 will improve in: Improved Handling and Stability - Upgrading to an aftermarket rear differential front mount bushing can do wonders for your car's handling and stability. These bushings are designed with performance in mind, reducing unwanted movement of the differential. Reduced Wheel Hop - Wheel hop can be a drag, both figuratively and literally. An upgraded front mount bushing helps minimize wheel hop, especially during hard acceleration or aggressive driving. Say goodbye to that unsettling bounce and hello to smoother power delivery. Powerflex polyurethane differential bushings are firmer than OEM rubber bushings, eliminating associated driveline slop and allowing for the crisp application of power to the ground, resulting in better throttle response and control. Powerflex is the number one selling suspension bushing manufacturer in Europe. Their experience with polyurethane bushing material and state-of-the-art manufacturing techniques allows them to produce premium performance bushings, made to exact-fit standards. Powerflex performance polyurethane bushings are built to last longer than OEM rubber bushings while improving performance and allowing for a more engaging driving experience. The use of Powerflex Copper Grease PCG1 is recommended for ease of installation. Periodic reapplication is recommended to extend the squeak-free service life of bushings. Powerflex Black Series bushings are the ultimate in track and race bushings. Need bushings for a car that's street-driven? Powerflex street bushings are an ideal alternative for street-driven vehicles and those that see occasional autocross or track time. Fits these BMW models: E36 Evo M3
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Vargas Billet Differential Lock Down Kit - Black - BMW G8X
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Vargas Turbo Technologies - Corporate Logo
T#:52129738
Part#: VTT-G8X-LOCKDOWN
Ships in 10 Business Days
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$ 739.99 USD
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This black-anodized kit provides the reinforcement BMW intended but never fully realized in the factory design.


Vargas Rear Bushing Insert Kit - BMW G0X X3/X4, G11/12 7
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Vargas Turbo Technologies - Corporate Logo
T#:51778109
Part#: VTT-X3-REAR-INSE
Ships in 10 Business Days
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$ 109.99 USD
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The VTT G0X Rear Bushing Insert Kit is a critical preventative upgrade for owners of BMW G-Series vehicles.
Metal Plate Limited-Slip Differential - 1.5 Way E46 / E8X / E9X ...
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Team MFactory - Corporate Logo
T#:15478740
Part#: TRS-10E90B-1.5
Ships in 6 Business Days
$ 999.99 USD
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$ 999.99 USD
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Unleash the full potential of your BMW and gain a competitive edge with the Turner Motorsport MFactory Metal Plate Limited Slip Differential. Engineered for superior performance, this differential ensures a smooth and consistent distribution of power to the wheels, maximizing traction and putting the power firmly on the ground. The 1.5-way design provides torque transfer during acceleration and halfway through deceleration, making it an ideal choice for those focused on track use.

  • Prominent advantage with the MFactory Metal Plate Limited Slip Differential.
  • Maximizes traction for enhanced vehicle performance.
  • 1.5-way design for torque transfer during acceleration and deceleration.
  • Turns your car into a true 2-wheel drive, improving grip.
  • Ideal for track enthusiasts seeking superior handling.

Upgrade your BMW's drivetrain with the Turner Motorsport MFactory Metal Plate Limited Slip Differential for unmatched toughness and performance.

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OEM Elring Rear Differential Axle Shaft Seal - BMW F3X G2X G8X & More...
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Elring - Corporate Logo
T#:53008820
Part#: 33108860348
In Stock at Vendor
New Item
$ 44.99

This product was last offered at the strikethrough price on
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$ 43.99 USD
$ 43.99 USD
The Axle Shaft Seal is a critical component designed to prevent fluid leaks around the axle shaft, ensuring the proper function of the vehicle’s drivetrain system. This seal helps maintain the integrity of the differential, preventing dirt, water, or contaminants from entering the diff while keeping lubricants contained.
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OS Giken TractionControl Limited Slip Differential Unit - E82 135i, E...
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OS Giken - Corporate Logo
T#:338591
Part#: BM531-HC
Ships in 2 Business Days
Starting at $ 2,550.00 USD
Starting at $ 2,550.00 USD
video: E92 335i with limited slip
click for high quality

As Used on Project E92 335i
A turbocharged BMW such as the 135i or 335i needs traction to put that power to the ground. The stock differential of both the 135i and 335i only put power to one wheel -- this just won't cut it! Upgrading to a limited slip differential means power to BOTH wheels, for better launch, acceleration, grip, and track handling. We're excited to be carrying the OS Giken LSD unit in our performance catalog, as we've used their products on our own Championship winning E46 and E92 race cars.

OS Giken's newest innovation is their quietest and smoothest limited slip unit yet - the Traction Control Differential (TCD). TCD is similar to their excellent Superlock differentials but with additional oil channels and pathways. The added lubrication makes diff operation smoother and quieter than before (not that there were many complaints to begin with). The locking engagement is more progressive than before which makes this diff more suitable for street driving. Track cars and drift cars should still use the Superlock LSD as it will transition to lock sooner. TCD is an evolution of a diff that was already extremely well-engineered for road and track use. Not willing to rest on their laurels, they took their superior engineering a step further.

With the 135i/335i LSD unit, they have incorporated revolutionary ideas into the overall limited-slip design which uses an unprecedented number of friction plates (up to 28 total!) for better locking force, better engagement/disengagement, and less generated heat. The use of highest quality materials, precise machining, forged gears, and sound engineering makes this LSD durable and reliable enough for road racing performance (which we can personally vouch for!). Zero break-in required. 100% progressive locking capability. 

Installation note: BMW differentials use many unique and BMW-only parts and components. Only technicians who are experienced and familiar with BMW parts should perform the installation. The OS Giken LSD is the limited slip unit (or 'chunk') only. It replaces the stock non-LSD chunk but the original ring and pinion and other internals must be installed with the OS Giken unit. This unit will only work on 335i manual differentials with a bolt-in or modified ring gear. Proper setup and spacing is critical for long life operation. Incorrect installation will void the warranty. We also offer the TCD unit pre-installed -  see our performance diff catalog for more info.

The OS Giken TCD Diff unit fits the following BMWs:
2008-2012  E82 BMW   135i with manual transmission
2007-2011  E90 BMW   335i - Sedan with manual transmission
2007-2013  E92 BMW   335i 335is - Coupe with manual transmission
2007-2013  E93 BMW   335i - Convertible with manual transmission
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Vargas Front Differential Bushing Reinforcement Insert Kit - Front - ...
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Vargas Turbo Technologies - Corporate Logo
T#:52129733
Part#: G8XDIFFINSFRT
Ships in 10 Business Days
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$ 132.99 USD
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The Vargas Turbo Technologies Front Diff Reinforcement Kit is a vital upgrade for high-horsepower S58-powered vehicles.
LSD Tune For OS Giken Differential
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OS Giken - Corporate Logo
T#:34382134
Part#: LSD-TUNE
Ships in 2 Business Days
$ 150.00 USD
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$ 150.00 USD
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OS Giken Superlock Limited Slip Differential Unit - E82 135i, E9X 335...
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OS Giken - Corporate Logo
T#:338590
Part#: BM531-HA
Ships in 2 Business Days
Starting at $ 3,700.00 USD
Starting at $ 3,700.00 USD
video: E92 335i with limited slip

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A turbocharged BMW such as the 135i or 335i needs traction to put that power to the ground. The stock differential of both the 135i and 335i only put power to one wheel -- this just won't cut it! Upgrading to a limited slip differential means power to BOTH wheels, for better lauch, acceleration, and track handling. We're excited to be carrying the OS Giken LSD unit in our performance catalog, as we've used their products on our own Championship winning E46 and E92 race cars.

With the 135i/335i LSD unit, they have incorporated revolutionary new ideas into the design (4 years in the making!) which uses an unprecedented number of friction plates (up to 28 total!) for better locking force, better engagement/disengagement, and less generated heat. The end result of their efforts is the OS Giken's OS Super Lock LSD which offers incredible durability and reliability on street and track driven BMWs. The use of highest quality materials, precise machining, forged gears and sound engineering makes this LSD durable and reliable enough for road racing performance (which we can personally vouch for!). Zero break-in required. Super smooth and quiet engagement, and 100% progressive locking capability.

Installation note: BMW differentials use many unique and BMW-only parts and components. Only technicians who are experienced and familiar with BMW parts should perform the installation. The OS Giken LSD is the limited slip unit (or 'chunk') only. It replaces the stock non-LSD chunk but the original ring and pinion and other internals must be installed with the OS Giken unit. This unit will only work on 335i manual differentials with a bolt-in or modified ring gear. Proper setup and spacing is critical for long life operation. Incorrect installation will void the warranty. We also offer the TCD unit pre-installed - see our performance diff catalog for more info.

The OS Giken Superlock Diff unit fits the following BMWs:
2008-2012 E82 BMW 135i with manual transmission
2007-2011 E90 BMW 335i - Sedan with manual transmission
2007-2013 E92 BMW 335i 335is - Coupe with manual transmission
2007-2013 E93 BMW 335i - Convertible with manual transmission
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Revshift Polyurethane Rear Differential Bushing Set - Drift - 75D Dur...
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Revshift - Corporate Logo
T#:27405446
Part#: PDB-F8X-70D
Ships in 7 Business Days
$ 249.99 USD
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Upgrade your vehicle's rear differential with the Revshift Polyurethane Rear Differential Bushing Set, delivering superior performance and stability. Engineered with precision and premium materials, this set is perfect for drift applications, offering enhanced handling and reduced drivetrain movement. This kit is ideal for any enthusiast looking to keep their drivetrain from moving when sliding.

Key Features:

Easy Installation: The two-piece design enables straightforward installation using the included Revshift bushing lube, making upgrading hassle-free. Drift Performance: Designed for drift track use with maximum stiffness polyurethane. Enhanced Stability: Minimize rear differential movement for improved stability and traction during acceleration, cornering, and braking. Durable Polyurethane Construction: Crafted from high-quality polyurethane, ensuring durability and long-lasting performance under daily driving conditions. Upgrade your vehicle's rear differential with the Revshift Polyurethane Rear Differential Bushing Set to experience a noticeable improvement in handling, stability, and overall driving dynamics. Elevate your drifting performance with confidence and precision.

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Rogue Engineering E46 M3 Differential Bushing (Front Position) FIX ...
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Rogue Engineering - Corporate Logo
T#:54388516
Part#: RE.484.FIX
Ships in 8 Business Days
New Item
$ 64.00 USD
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A common failure point on the BMW E46 M3 platform occurs when the side differential mounting bolt backs out, leading to stripped threads in the differential cover.

Vargas Front Differential Bushing Reinforcement Insert Kit - Rear - B...
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Vargas Turbo Technologies - Corporate Logo
T#:52129737
Part#: G8XDIFFINSTRO
Ships in 10 Business Days
New Item
$ 132.99 USD
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$ 132.99 USD
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The G8X Rear Billet Diff Insert Kit is a precision-machined reinforcement component that installs directly into the rear differential bushing.
Genuine BMW Lock Ring - 27107539525
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Genuine BMW - Corporate Logo
T#:53816
Part#: 27107539525
Ships in 2 Business Days
6% off MSRP $ 16.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 16.00 USD
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6% off MSRP
$ 16.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 16.00 USD
Free Shipping on orders $49 and up
Replace these when reassembling the transfer case. Genuine BMW Lock Ring - 28X2 This item fits the following BMW Chassis: E70 X5M,E71 X6M,E53 48IS,E53 X5,E70 X5,E71 X6,E83 X3,E90,E92,F01,F02,F06,F10,F12,F13,F15,F16,F25 X3,F26 X4 X4,F30,F31,F32,F33,F34,F36
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Genuine BMW Dustcover Plate, Large - 33137500876
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Genuine BMW - Corporate Logo
T#:59544
Part#: 33137500876
Ships in 2 Business Days
5% off MSRP $ 19.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 18.99 USD
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5% off MSRP
$ 19.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 18.99 USD
Free Shipping on orders $49 and up


Genuine BMW Dustcover Plate, Large -
This item fits the following BMW Chassis:
E38,E82,E89 Z4,E90,E92,E93



Genuine BMW Differential Dust Cover
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Genuine BMW - Corporate Logo
T#:174741
Part#: 33137600693
Ships in 2 Business Days
$ 16.99 USD
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Genuine BMW Dustcover Plate.
Genuine BMW Servo Motor, Differential, R - 33142284191
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Genuine BMW - Corporate Logo
T#:174742
Part#: 33142284191
Ships in 2 Business Days
4% off MSRP $ 691.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 660.99 USD
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4% off MSRP
$ 691.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 660.99 USD
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Genuine BMW Servo Motor, Differential, Right -
This item fits the following BMW Chassis:
F06,F10,F12,F13,F80 M3,F82 M4,F83

Front Differential Input Shaft Seal
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Genuine BMW - Corporate Logo
T#:485407
Part#: 31527507697
Ships in 2 Business Days
7% off MSRP $ 13.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 12.99 USD
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7% off MSRP
$ 13.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 12.99 USD
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Seals the input shaft flange to the front differential

Final Drive (FRONT AXLE)
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Genuine BMW - Corporate Logo
T#:614164
Part#: 31507594314
Ships in 2 Business Days
4% off MSRP $ 3,187.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 3,045.00 USD
4% off MSRP
$ 3,187.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 3,045.00 USD
No core charge required

Genuine BMW Lock Plate for Output Flange Nut - E12 E21 E24 E28 E30 E3...
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Genuine BMW - Corporate Logo
T#:7582
Part#: 23221201330
Ships in 2 Business Days
$ 7.99 USD
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Genuine BMW Securing Plate -
This item fits the following BMW Chassis:
E30,E34

REAR-AXLE-DRIVE
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Genuine BMW - Corporate Logo
T#:6699706
Part#: 33108485723
Ships in 2 Business Days
4% off MSRP $ 3,335.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 3,185.99 USD
4% off MSRP
$ 3,335.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 3,185.99 USD

Genuine BMW Rear Differential Assembly - 215LW - G05 G06 G07 (W/O M S...
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For vehicles without an M Sport Differential
Genuine BMW - Corporate Logo
T#:6304572
Part#: 33109846356
Ships in 2 Business Days
4% off MSRP $ 3,874.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 3,700.99 USD
4% off MSRP
$ 3,874.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 3,700.99 USD
New differential assembly, no core charge!
Output Shaft Seal
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ZF - Corporate Logo
T#:54744784
Part#: 24207588763
Ships in 1-2 days
New Item
$ 2.99 USD
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If you notice a puddle of transmission fluid forming underneath your vehicle, the output shaft seal may have failed and is leaking. Stop the leak before it can cause internal transmission damage and replace the output shaft seal in your vehicle today. This seal is on the back of your transmission for the front to rear propeller or driveshaft.
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Genuine BMW Screw Plug - M8x1mm
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Genuine BMW - Corporate Logo
T#:39025522
Part#: 07119907133
Ships in 2 Business Days
6% off MSRP $ 17.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 16.99 USD
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6% off MSRP
$ 17.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 16.99 USD
Free Shipping on orders $49 and up
Replacement screw plug directly from BMW

Genuine BMW At-Front Differential I=3,64 - 31507572052 - E90,E92 ...
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Genuine BMW - Corporate Logo
T#:55841
Part#: 31507572052
Ships in 2 Business Days
4% off MSRP $ 2,833.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 2,706.99 USD
4% off MSRP
$ 2,833.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 2,706.99 USD


Genuine BMW At-Front Differential - I=3,64
This item fits the following BMW Chassis:
E90,E92

Genuine BMW Rear-Axle-Drive I=3,15 - BMW F15,F16
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Genuine BMW - Corporate Logo
T#:190058
Part#: 33107636992
Ships in 2 Business Days
4% off MSRP $ 3,668.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 3,504.99 USD
4% off MSRP
$ 3,668.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 3,504.99 USD
If your differential has been damaged, this Genuine BMW replacement differential is the perfect option to restore the smooth operation of your driveline. This differential includes the full case, internal gears, and new seals. Note: Installation hardware and output flanges are not included, sold separately.
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Genuine BMW Collar Nut 33121200258
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Genuine BMW - Corporate Logo
T#:19796
Part#: 33121200258
Ships in 5 Business Days
$ 11.99 USD
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Genuine BMW REAR AXLE COLLAR NUT


Genuine BMW Crush Sleeve - Short Nose Differential - E10 E21 ...
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Genuine BMW - Corporate Logo
T#:19817
Part#: 33121200259
Ships in 5 Business Days
$ 10.99 USD
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Genuine BMW Clamping Bush -
This item fits the following BMW Chassis:
E30,E36

Genuine BMW Differential - F3x
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Genuine BMW - Corporate Logo
T#:226178
Part#: 33107603747
Ships in 5 Business Days
4% off MSRP $ 2,951.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 2,819.99 USD
4% off MSRP
$ 2,951.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 2,819.99 USD