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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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BMS Differential Support Bracket Brace For G Chassis BMW/Supra
BMS Differential Support Bracket Brace For G Chassis BMW/Supra ...
Burger Motorsports - Corporate Logo
T#:49822560
Part#: BMSDSBBG
Ships on Aug 31, 2026
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$ 229.00 USD
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$ 229.00 USD
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For G-Chassis BMW & A90/A91 Toyota Supra High torque loads, hard launches, and aggressive driving expose the factory differential mounting’s built-in compliance. Under power, the differential can shift excessively, resulting in wheel hop, inconsistent traction, and increased stress on drivetrain components—issues that become more pronounced on tuned or track-driven cars. The BMS Differential Support Bracket Brace corrects this weakness by reinforcing the differential mounting point and securely tying it to the subframe. By controlling unwanted movement, the brace improves rear-end stability and ensures power is transferred to the ground more efficiently. Why Upgrade? OEM differential mounts favor NVH reduction over control. As torque output increases, that compliance translates into drivetrain shock and lost traction. This brace stiffens the system where it matters most, reducing flex and improving load management under acceleration. Performance Benefits Improved launch consistency Significant reduction in wheel hop Increased rear-end stability under load More precise and predictable power delivery Engineered for Demanding Use Designed around factory mounting points, the BMS Differential Support Bracket delivers precise OE-level fitment with increased structural rigidity. Its robust construction resists deflection under high torque, while upgraded hardware provides greater clamping force for long-term reliability. Fully bolt-on for straightforward installation on both stock and modified vehicles. Key Features Reinforces rear differential mounting Limits differential movement under load Enhances traction and drivetrain response Heavy-duty construction for high-performance applications Bolt-on installation using factory locations Compatible with G-chassis BMW and A90/A91 Supra A focused drivetrain upgrade for drivers who demand consistency, control, and durability at higher performance levels.
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Powerflex Transfer Case Bushing Insert - Black Series
Powerflex Transfer Case Bushing Insert - Black Series
Powerflex - Corporate Logo
T#:53997732
Part#: PFF5-1428BLK
Ships in 2 Business Days
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$ 50.99 USD
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$ 50.99 USD
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Lock down your xDrive drivetrain for the track. This 95A durometer Black Series polyurethane insert eliminates transfer case rotation, ensuring zero-compromise power delivery and immediate throttle response under maximum load.
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Powerflex Transmission Mount Bushing - Heritage Series
Powerflex Transmission Mount Bushing - Heritage Series
Powerflex - Corporate Logo
T#:54388391
Part#: PFF5-4655H
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$ 118.99 USD
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$ 118.99 USD
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Stabilize your gearbox under heavy cornering loads. These 70A durometer Heritage mounts increase rigidity by 150% to prevent shift-linkage binding, utilizing a discrete dark grey finish to blend into your undercarriage.
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Powerflex Transfer Case Bushing Insert - Performance Series
Powerflex Transfer Case Bushing Insert - Performance Series
Powerflex - Corporate Logo
T#:53997744
Part#: PFF5-1526P
Ships in 2 Business Days
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$ 41.99 USD
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$ 41.99 USD
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Eliminate xDrive drivetrain twist. This 80A durometer polyurethane insert slides into the factory transfer case mount, locking down deflection for immediate throttle response and track-ready durability.
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PowerFlex Rear Diff Rear Mount Bushing - E36 - M42, M44, M50, M52, S50, S52
PowerFlex Rear Diff Rear Mount Bushing - E36 - M42, M44, M50, M52, S5...
Powerflex - Corporate Logo
T#:54281641
Part#: PFR5-326H
Ships in 2 Business Days
New Item
$ 139.99 USD
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$ 139.99 USD
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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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Performance Polyurethane Rear Differential Bushings
Performance Polyurethane Rear Differential Bushings
Powerflex - Corporate Logo
T#:54317180
Part#: PFR5-324
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$ 51.99 USD
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$ 51.99 USD
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PowerFlex Rear Diff Front Mount Bushing - E36 - M4, M44, M50, M52, S50
PowerFlex Rear Diff Front Mount Bushing - E36 - M4, M44, M50, M52, S5...
Powerflex - Corporate Logo
T#:54281644
Part#: PFR5-325H
Back Ordered
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$ 44.99 USD
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$ 44.99 USD
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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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Powerflex Transfer Case Bushing Insert - E83/E84 X1/X3 XDrive
Powerflex Transfer Case Bushing Insert - E83/E84 X1/X3 XDrive ...
Powerflex - Corporate Logo
T#:53997743
Part#: PFF5-1526
Ships in 2 Business Days
New Item
$ 41.99 USD
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$ 41.99 USD
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Lock down your xDrive transfer case. This polyurethane mount insert slips into the factory rubber voids to eliminate drivetrain deflection, optimizing power delivery and stabilizing the driveline under hard load.
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Powerflex Transfer Case Bushing Insert - Diesel
Powerflex Transfer Case Bushing Insert - Diesel
Powerflex - Corporate Logo
T#:53997745
Part#: PFF5-1526R
Ships in 2 Business Days
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$ 41.99 USD
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$ 41.99 USD
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Stabilize your xDrive drivetrain with Powerflex. This 65A durometer polyurethane insert slides into your factory transfer case mount, eliminating high-torque deflection and optimizing power transfer under heavy loads.
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Ultra-Oval Shifter Arm Front Bushing Ultra-Oval - Black
Ultra-Oval Shifter Arm Front Bushing Ultra-Oval - Black
Powerflex - Corporate Logo
T#:54352784
Part#: PFF5-4634
Ships in 2 Business Days
New Item
$ 53.99 USD
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$ 53.99 USD
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Secure your shift gate alignment under high track loads. This 95A durometer polyurethane bushing replaces the flimsy factory oval rubber, eliminating shifter arm flex for fast, positive gear engagement.
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BMW E21 Rear Diff Mounting Bushing
BMW E21 Rear Diff Mounting Bushing
Powerflex - Corporate Logo
T#:54352781
Part#: PFR5-1625H
Ships in 2 Business Days
New Item
$ 89.99 USD
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$ 89.99 USD
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PowerFlex Rear Diff Front Mount Bushing - E36 M3 Evo - S50B32
PowerFlex Rear Diff Front Mount Bushing - E36 M3 Evo - S50B32 ...
Powerflex - Corporate Logo
T#:54317182
Part#: PFR5-324H
Ships in 2 Business Days
New Item
$ 51.99 USD
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$ 51.99 USD
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Ensure your build operates at peak mechanical efficiency. Eliminate driveline slop and secure your differential assembly with track-proven engineering.
BMW 1502-2002 (1962 - 1977) Rear Diff Rear Mounting Bushing
BMW 1502-2002 (1962 - 1977) Rear Diff Rear Mounting Bushing
Powerflex - Corporate Logo
T#:54352762
Part#: PFR5-2025H
Ships in 2 Business Days
New Item
$ 89.99 USD
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$ 89.99 USD
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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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Vargas Rear Bushing Insert Kit - BMW G0X X3/X4, G11/12 7
Vargas Rear Bushing Insert Kit - BMW G0X X3/X4, G11/12 7
Vargas Turbo Technologies - Corporate Logo
T#:51778109
Part#: VTT-X3-REAR-INSE
Ships on Aug 28, 2026
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$ 109.99 USD
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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.
Vargas Front Differential Bushing Reinforcement Insert Kit - Front - BMW G8X
Vargas Front Differential Bushing Reinforcement Insert Kit - Front - ...
Vargas Turbo Technologies - Corporate Logo
T#:52129733
Part#: G8XDIFFINSFRT
Ships on Aug 28, 2026
New Item
$ 132.99 USD
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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.
Pure Drivetrain ATC 13-1 Transfer Case Kit - AWD High Performance Hard Parts Kit
Pure Drivetrain ATC 13-1 Transfer Case Kit - AWD High Performance Har...
Pure Drivetrain Solutions - Corporate Logo
T#:54566515
Part#: PDS13-0131-1000
In Stock at Vendor
New Item
$ 1,799.99 USD
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$ 1,799.99 USD
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Don't let your transfer case limit your build's potential. Upgrade to Pure Drivetrain Solutions and lock down your drivetrain integrity.
Pure Drivetrain 8HP51 High Performance Transmission Hard Parts Kit - Stage 2 - BMW G2X G42 G01 G02 xDrive
Pure Drivetrain 8HP51 High Performance Transmission Hard Parts Kit - ...
Pure Drivetrain Solutions - Corporate Logo
T#:50136699
Part#: 12-94-2000
In Stock at Vendor
New Item
$ 4,999.99 USD
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$ 4,999.99 USD
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We all love the ZF 8HP for its lightning-fast shifts, but as many BMW owners discover, it’s not invincible. If you’ve pushed your build past the factory power limits, you’re likely feeling the dreaded "trans slip." Before you spend five figures on a replacement, check out the Hard Parts Kit from Pure Drivetrain Solutions. This kit targets the specific failure points of the 8HP, reinforcing the transmission from the inside out.
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Vargas Front Differential Bushing Reinforcement Insert Kit - Rear - BMW G8X
Vargas Front Differential Bushing Reinforcement Insert Kit - Rear - B...
Vargas Turbo Technologies - Corporate Logo
T#:52129737
Part#: G8XDIFFINSTRO
Ships on Aug 28, 2026
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.
Vargas Billet Differential Lock Down Kit - Black - BMW G8X
Vargas Billet Differential Lock Down Kit - Black - BMW G8X
Vargas Turbo Technologies - Corporate Logo
T#:52129738
Part#: VTT-G8X-LOCKDOWN
Ships on Aug 28, 2026
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$ 739.99 USD
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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 Carbon Fiber Driveshaft - Toyota A90/91 Supra
Vargas Carbon Fiber Driveshaft - Toyota A90/91 Supra
Vargas Turbo Technologies - Corporate Logo
T#:51672704
Part#: VTT-SUPRA-DRIVES
Ships on Aug 28, 2026
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$ 1,769.99 USD
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$ 1,769.99 USD
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The VTT A90/91 Supra Carbon Fiber Driveshaft is the definitive solution for MK5 owners who demand ultimate strength without the drag of a heavy OEM assembly.
Vargas 4130 Chromoly Driveshaft - Toyota A90/91 Supra
Vargas 4130 Chromoly Driveshaft - Toyota A90/91 Supra
Vargas Turbo Technologies - Corporate Logo
T#:51778133
Part#: VTT-SUP-DS
Ships on Aug 28, 2026
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$ 1,214.99 USD
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$ 1,214.99 USD
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The VTT 4130 Chromoly Driveshaft is a heavy-duty driveline upgrade designed specifically for the A90/91 Toyota Supra.
VTT Carbon Fiber Driveshaft - BMW F90 M5
VTT Carbon Fiber Driveshaft - BMW F90 M5
VIN Required For Purchase - Please call in to order this item - Out of stock Carbon Driveshaft orders may take 1-6 moths due to production lead times
Vargas Turbo Technologies - Corporate Logo
T#:49857421
Part#: VTTCFDSF90M5
Ships on Aug 28, 2026
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$ 2,099.99 USD
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$ 2,099.99 USD
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VTT is proud to offer a premium carbon fiber driveshaft, manufactured exclusively for VTT in the USA by PST, one of the most respected names in carbon fiber driveshaft technology. Each driveshaft is constructed using 3.25″ carbon fiber tubing, paired with Spicer 1350 yokes and U-joints, then bonded using PST’s proprietary process and precision balanced to within 1/8 in-oz as a complete assembly.
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Powerflex Transmission Mount Bushing - Black Series
Powerflex Transmission Mount Bushing - Black Series
Powerflex - Corporate Logo
T#:54388342
Part#: PFF5-4655BLK
Back Ordered
New Item
$ 118.99 USD
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$ 118.99 USD
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Secure your gearbox geometry at the absolute limit. These 95A durometer Black Series mounts increase stiffness by 375%, preventing transmission twisting to ensure flawless shifting and maximum torque translation.
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PowerFlex Rear Diff Rear Mounting Bushing - E10
PowerFlex Rear Diff Rear Mounting Bushing - E10
Powerflex - Corporate Logo
T#:54352763
Part#: PFR5-2025BLK
Back Ordered
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$ 102.99 USD
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$ 102.99 USD
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The Powerflex Black Series is engineered for maximum performance and minimum deflection

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