Home
Drivetrain
Differential and Gearing Upgrades

BMW Differential and Gearing Upgrades for BMW 5 Series F10 (2011-2016)

Clear BMW chassis

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.

Sub-Categories

Sort By:

Turner Titanium Magnetic Differential Drain Plug - M22x1.5

T#:593924

Part#: 027030TMS01

In Stock

Sale - Save 25% $ 89.99

This product was last offered at the strikethrough price on
06-14-2026

$ 67.49 USD

Add to Wish List

Qty

Sale - Save 25%

$ 89.99

This product was last offered at the strikethrough price on
06-14-2026

$ 67.49 USD

Add to Wish List

When both extreme-duty protection and saving every gram matters: the Turner Magnetic Differential Drain Plug.

ECS Magnetic Differential Oil Drain Plug - Most BMW & Mini Models ...

T#:366828

Part#: 009314ECS01A

In Stock

Sale - Save 25% $ 62.99

This product was last offered at the strikethrough price on
06-13-2026

$ 47.24 USD

Add to Wish List

Qty

Sale - Save 25%

$ 62.99

This product was last offered at the strikethrough price on
06-13-2026

$ 47.24 USD

Add to Wish List

You use a magnetic drain plug for your engine oil, right? Why not apply the same proactive thinking to the differential too? This is a direct replacement magnetic differential drain plug for your BMW. It will catch and retain fine and larger metal particles in your diff oil. If you're proactive in your diff oil servicing, you will catch a minor issue long before it becomes a headache. Diff drain plug includes one sealing o-ring. Direct replacement for Genuine BMW part number(s): 33117525064, 33110308370, 33110152626

Show More Show Less

Differential Input Shaft Seal - Priced Each

T#:44021076

Part#: 33121213949

In Stock at Vendor

$ 27.99

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

$ 26.99 USD

Add to Wish List

Qty

$ 26.99 USD

Add to Wish List

Differential Input Shaft Seal - Priced Each

T#:49335120

Part#: 33121213949

In Stock

$ 18.99 USD

Add to Wish List

Qty

$ 18.99 USD

Add to Wish List

Replaces cracked or hardened valve body seals

Powerflex Black Series BMW F10/F07 Rear Diff Rear Mount Bushing ...

T#:33880006

Part#: PFR5-6031BLK

Ships in 1 Business Day

$ 76.99 USD

Add to Wish List

Qty

$ 76.99 USD

Add to Wish List

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:

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.
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.
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.
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.
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.

Show More Show Less

Powerflex BMW F10/F07 Rear Diff Front Bushing

T#:33880011

Part#: PFR5-6032BLK

Ships in 1 Business Day

$ 121.99 USD

Add to Wish List

Qty

$ 121.99 USD

Add to Wish List

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.

Show More Show Less

Limited Slip Differential With Output Shaft Seal - 188 (Small Diff Ho...

T#:55965861

Part#: 30309175WKWVTKT2

Ships in 10 Business Days

$ 1,269.99 USD

Add to Wish List

Qty

$ 1,269.99 USD

Add to Wish List

This AutoTech LSD Upgrade Kit pairs AutoTech’s highly engineered 188mm limited-slip differential carrier with a pair of Corteco output shaft seals, giving you everything you need for a leak-free install.

Show More Show Less

Front Differential Input Seal Kit - E46, E53, E60, E61, F30

T#:41289766

Part#: 31521428678TKT

Back Ordered

$ 52.99 USD

Add to Wish List

Qty

$ 52.99 USD

Add to Wish List

This kit comes with the seal and both dust covers needed to re-seal your vehicles input shaft on the front differential.

Select Vehicle

Purpose

Category

Differential and Gearing Upgrades

Brand

Price

Special Offers