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BMW Drivetrain Parts

Building your perfect BMW is more than just adding horsepower and stiff suspension. Your drivetrain needs attention in order to deliver power effectively. Most BMWs feature comfortable clutch discs, heavy flywheels, long shifter throws, and open differentials. The drivetrain transmits power to the wheels, but can also be a source of power loss when it is designed for comfort rather than performance. Everything on this page will help you improve your power delivery and driving experience by providing custom Limited Slip Differentials, Short Shift Conversions, Performance Clutch Discs, Lightweight Flywheels, and anything else your BMW needs to be the perfect driving experience.

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JXB Performance - Corporate Logo
T#:6061697
Part#: BMW08A0
In Stock
Sale - Save 19% $ 299.99

This product was last offered at the strikethrough price on
05-15-2026

Starting at $ 242.84 USD
Free Shipping
Sale - Save 19%
$ 299.99

This product was last offered at the strikethrough price on
05-15-2026

Starting at $ 242.84 USD
Free Shipping
The stock center support bearing carrier is designed to reduce NVH to the cabin by loosely holding the center bearing with a flimsy rubber bushing. During launches and shifts, the driveshaft is allowed to travel off-center, decreasing throttle response and causing oscillations through the drivetrain. As they age, the carrier rubber sags and dry rots, ruining the driveshaft alignment. Fix or prevent this common issue with JXB Performance's Driveshaft Center Support Bearing Upgrade! JXB utilizes a simple but extremely effective 2-piece design which allows you to install this upgrade and replace bushings with ease. The stock center support carrier is simply cut away, allowing the JXB bushings to "clamp" down on the driveshaft bearing and hold the driveshaft securely in place, maintaining driveshaft alignment at all times. Two bushing options are available for this kit, Street and Track, both of which are many times better than the stock bushings: The street bushings absorb most of the NVH from the drivetrain. Some light NVH is possible at some speeds in the form of a soft hum. (With a modified exhaust or windows down, you’ll probably never hear it) The track bushings are for those who want no-compromise drivetrain performance. These may create a substantial amount of cabin noise. Not sure which is for you? Try them both, they’re interchangeable! Installation does not require the removal of the driveshaft. The 2-part design clamps around the OEM bearing. The old carrier must be removed, so a cutting tool is required. Looking for replacement or additional bushings? See T#4799658 for replacement street bushings and T#4799659 for replacement track bushings.
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Clutch Masters - Corporate Logo
T#:54388463
Part#: 03460-HDTZ-R
Ships in 7 Business Days
New Item
$ 817.99 USD
Free Shipping on orders $49 and up
Ready to step up to serious power? If your factory clutch is slipping under pressure, it’s time for the ultimate drivetrain upgrade. The Clutch Masters FX300 (Stage 3) Performance Clutch Installation Kit is engineered for high-performance street applications where maximum holding capacity and daily drivability must coexist.
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Billet Diff Lock Down Kit
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:21176906
Part#: VTT-A9X-DLD
In Stock
Sale - Save 7% $ 313.99

This product was last offered at the strikethrough price on
05-04-2026

Starting at $ 291.99 USD
Free Shipping on orders $49 and up
Sale - Save 7%
$ 313.99

This product was last offered at the strikethrough price on
05-04-2026

Starting at $ 291.99 USD
Free Shipping on orders $49 and up
VTT noticed a hole in the A9X/Z4 market for a high-quality, lightweight, NVH-friendly, and easy-to-install Diff Lock Down kit to improve diff stability under launching, and hard cornering. Vargas went to work on a very innovative design that 100% positively locks the diff down from movement, while shielding it from adding a ton of NVH, and can be used with the stock diff, and subframe bushings. This design uses existing mounting points on the vehicle, you do NOT have to remove the subframe or the Diff to install. Simply remove 4 diff bolts, drill two holes in the subframe slightly bigger, install two M10 riv-nuts, and install the lockdown, you do not even have to move the exhaust. A typical install can be 15-30 minutes for someone who is experienced. You will need a Riv-nut tool to install the Riv-nuts as one is not included. Features: Lightweight 1.5 lbs for the entire lockdown plate Uses FOUR connection points on the Diff, and two on the subframe for the ultimate in positive diff location, this will stop all diff movement on launch, saving your guibos, etc 100% Billet construction from 6061-T6 aluminum Anodized in 4 colors for corrosion resistance, a long-lasting finish, and good looks The subframe does NOT have to be removed for installation Uses all 12.9 grade hardware Does not add excessive NVH Positively locks down the diff to eliminate all unwanted movement under launches, acceleration, cornering, etc.
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JXB Performance - Corporate Logo
T#:6061652
Part#: BMW08A0-T
Ships in 4 Business Days
Sale - Save 15% $ 299.99

This product was last offered at the strikethrough price on
05-15-2026

$ 255.67 USD
Free Shipping on orders $49 and up
Sale - Save 15%
$ 299.99

This product was last offered at the strikethrough price on
05-15-2026

$ 255.67 USD
Free Shipping on orders $49 and up
The stock center support bearing carrier utilizes an extremely thin layer of rubber to secure the driveshaft, allowing for minimal movement to effectively insulate the cabin from noise, vibration, and harshness (NVH). However, this design is less effective at maintaining proper bearing alignment under heavy loads. Over time, it allows the bearing to gradually sag, disrupting the driveshaft alignment and introducing play in the driveline during gear shifts and throttle application. The original equipment manufacturer (OEM) rubber bushing has a tendency to sag, become brittle, and eventually deteriorate, resulting in dry rot and cracking. Even in well-maintained vehicles, the stock bushing can develop cracks in as little as 5-10 years. When the bushing loses its integrity, it can lead to pronounced vibrations, clunking noises, and increased stress on the bearing. Adding to the challenge, the stock carrier is permanently molded onto the center support bearing, making replacement a difficult task that typically necessitates specialized tools.
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Clutch Masters - Corporate Logo
T#:54388361
Part#: 03050HDB6R
Ships in 3 Business Days
New Item
$ 571.99 USD
Free Shipping on orders $49 and up
When you're pushing your BMW or MINI past factory limits, your stock clutch simply won't hold the power. Whether you need a crisp, high-performance street setup or a brutal, track-ready clamping force, these kits deliver the engagement and holding capacity required for serious driving.
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Vargas Turbo Technologies - Corporate Logo
T#:52129737
Part#: G8XDIFFINSTRO
Ships in 10 Business Days
New Item
$ 132.99 USD
Free Shipping
$ 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.

Billet Differential Lock Down Kit - Clear
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:58782359
Part#: G8X-LOCKDOWN-CLR
Ships in 10 Business Days
New Item
$ 739.99 USD
Free Shipping
$ 739.99 USD
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This kit provides the reinforcement BMW intended but never fully realized in the factory design.
Vargas Turbo Technologies - Corporate Logo
T#:52129738
Part#: G8X-LOCKDOWN-BLK
Ships in 10 Business Days
New Item
$ 739.99 USD
Free Shipping
$ 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 Turbo Technologies - Corporate Logo
T#:52129733
Part#: G8XDIFFINSFRT
Ships in 10 Business Days
New Item
$ 132.99 USD
Free Shipping
$ 132.99 USD
Free Shipping
The Vargas Turbo Technologies Front Diff Reinforcement Kit is a vital upgrade for high-horsepower S58-powered vehicles.

JXB Performance - Corporate Logo
T#:56471630
Part#: TYT01A0-B
Ships in 8 Business Days
New Item
$ 329.99 USD
Free Shipping
$ 329.99 USD
Free Shipping