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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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Powerflex Transfer Case Bushing Insert - Black Series
Powerflex Transfer Case Bushing Insert - Black Series
Powerflex - Corporate Logo
T#:53997732
Part#: PFF5-1428BLK
Ships in 1 Business Day
New Item
Sale - Save 15% $ 50.99

This product was last offered at the strikethrough price on
08-14-2026

$ 43.34 USD
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$ 50.99

This product was last offered at the strikethrough price on
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$ 43.34 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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GSP Rear Axle Assembly - Left - F06, F10, F12, F13
GSP Rear Axle Assembly - Left - F06, F10, F12, F13
GSP North America - Corporate Logo
T#:54388486
Part#: NCV28001K
In Stock
New Item
$ 141.99

This product was last offered at the strikethrough price on
06-24-2026

$ 129.99 USD
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$ 141.99

This product was last offered at the strikethrough price on
06-24-2026

$ 129.99 USD
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When it comes to keeping your ultimate driving machine planted and putting power to the pavement, compromise isn't an option. Since 2004, GSP has been an industry leader in North American drivetrain technology, consistently beating the competition to market with the newest applications and broadest coverage.
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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
New Item
Sale - Save 15% $ 44.99

This product was last offered at the strikethrough price on
08-14-2026

$ 38.24 USD
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$ 44.99

This product was last offered at the strikethrough price on
08-14-2026

$ 38.24 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 Transmission Mount Bushing - Heritage Series
Powerflex Transmission Mount Bushing - Heritage Series
Powerflex - Corporate Logo
T#:54388391
Part#: PFF5-4655H
Back Ordered
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Sale - Save 15% $ 118.99

This product was last offered at the strikethrough price on
08-14-2026

$ 101.14 USD
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$ 118.99

This product was last offered at the strikethrough price on
08-14-2026

$ 101.14 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 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 1 Business Day
New Item
Sale - Save 15% $ 139.99

This product was last offered at the strikethrough price on
08-14-2026

$ 118.99 USD
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Sale - Save 15%
$ 139.99

This product was last offered at the strikethrough price on
08-14-2026

$ 118.99 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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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 1 Business Day
New Item
Sale - Save 15% $ 53.99

This product was last offered at the strikethrough price on
08-14-2026

$ 45.89 USD
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Sale - Save 15%
$ 53.99

This product was last offered at the strikethrough price on
08-14-2026

$ 45.89 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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GSP Front Axle Assembly - Left - F39, F48, F54, F60
GSP Front Axle Assembly - Left - F39, F48, F54, F60
GSP North America - Corporate Logo
T#:54388487
Part#: NCV49013
Ships in 2 Business Days
New Item
$ 175.99 USD
Free Shipping on orders $49 and up
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$ 175.99 USD
Free Shipping on orders $49 and up
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When it comes to keeping your ultimate driving machine planted and putting power to the pavement, compromise isn't an option. Since 2004, GSP has been an industry leader in North American drivetrain technology, consistently beating the competition to market with the newest applications and broadest coverage.
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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 1 Business Day
New Item
Sale - Save 15% $ 41.99

This product was last offered at the strikethrough price on
08-14-2026

$ 35.69 USD
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Sale - Save 15%
$ 41.99

This product was last offered at the strikethrough price on
08-14-2026

$ 35.69 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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BMW E21 Rear Diff Mounting Bushing
BMW E21 Rear Diff Mounting Bushing
Powerflex - Corporate Logo
T#:54352781
Part#: PFR5-1625H
Ships in 1 Business Day
New Item
Sale - Save 15% $ 89.99

This product was last offered at the strikethrough price on
08-14-2026

$ 76.49 USD
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Sale - Save 15%
$ 89.99

This product was last offered at the strikethrough price on
08-14-2026

$ 76.49 USD
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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 1 Business Day
New Item
Sale - Save 15% $ 41.99

This product was last offered at the strikethrough price on
08-14-2026

$ 35.69 USD
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Sale - Save 15%
$ 41.99

This product was last offered at the strikethrough price on
08-14-2026

$ 35.69 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 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 1 Business Day
New Item
Sale - Save 15% $ 51.99

This product was last offered at the strikethrough price on
08-14-2026

$ 44.19 USD
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Sale - Save 15%
$ 51.99

This product was last offered at the strikethrough price on
08-14-2026

$ 44.19 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.
Performance Polyurethane Rear Differential Bushings
Performance Polyurethane Rear Differential Bushings
Powerflex - Corporate Logo
T#:54317180
Part#: PFR5-324
Back Ordered
New Item
Sale - Save 15% $ 51.99

This product was last offered at the strikethrough price on
08-14-2026

$ 44.19 USD
Free Shipping on orders $49 and up
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Sale - Save 15%
$ 51.99

This product was last offered at the strikethrough price on
08-14-2026

$ 44.19 USD
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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 1 Business Day
New Item
Sale - Save 15% $ 41.99

This product was last offered at the strikethrough price on
08-14-2026

$ 35.69 USD
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Sale - Save 15%
$ 41.99

This product was last offered at the strikethrough price on
08-14-2026

$ 35.69 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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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 1 Business Day
New Item
Sale - Save 15% $ 89.99

This product was last offered at the strikethrough price on
08-14-2026

$ 76.49 USD
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Sale - Save 15%
$ 89.99

This product was last offered at the strikethrough price on
08-14-2026

$ 76.49 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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GSP Axle Assembly - Front Right - R50
GSP Axle Assembly - Front Right - R50
GSP North America - Corporate Logo
T#:54388377
Part#: NCV49501
Ships in 2 Business Days
New Item
$ 164.99 USD
Free Shipping on orders $49 and up
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$ 164.99 USD
Free Shipping on orders $49 and up
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Don't wait for a total CV joint failure to leave you stranded at the track or on the side of the highway. It’s time to restore drivetrain integrity with these brand new replacement axle assemblies from GSP.
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GSP Axle Assembly - Rear Right - R60, R61
GSP Axle Assembly - Rear Right - R60, R61
GSP North America - Corporate Logo
T#:54388515
Part#: NCV49044
Ships in 3 Business Days
New Item
$ 116.99 USD
Free Shipping on orders $49 and up
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$ 116.99 USD
Free Shipping on orders $49 and up
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In the world of European performance, your drivetrain is only as strong as its weakest link. If your right rear axle is suffering from torn boots or worn CV joints, you are losing efficiency and risking a critical failure on the street or the autocross pad. The GSP Rear Right Axle Assembly offers a precision-engineered solution to restore the structural integrity of your vehicle's drivetrain.
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GSP Rear Axle Assembly - Priced Each - E39
GSP Rear Axle Assembly - Priced Each - E39
GSP North America - Corporate Logo
T#:54388485
Part#: NCV27055
Ships in 2 Business Days
New Item
$ 198.99 USD
Add to Wish List
$ 198.99 USD
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When it comes to keeping your ultimate driving machine planted and putting power to the pavement, compromise isn't an option. Since 2004, GSP has been an industry leader in North American drivetrain technology, consistently beating the competition to market with the newest applications and broadest coverage.
Show More Show Less
Powerflex Transmission Mount Bushing - Black Series
Powerflex Transmission Mount Bushing - Black Series
Powerflex - Corporate Logo
T#:54388342
Part#: PFF5-4655BLK
Back Ordered
New Item
Sale - Save 15% $ 118.99

This product was last offered at the strikethrough price on
08-14-2026

$ 101.14 USD
Free Shipping on orders $49 and up
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Sale - Save 15%
$ 118.99

This product was last offered at the strikethrough price on
08-14-2026

$ 101.14 USD
Free Shipping on orders $49 and up
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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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Sale - Save 15% $ 102.99

This product was last offered at the strikethrough price on
08-14-2026

$ 87.54 USD
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$ 102.99

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08-14-2026

$ 87.54 USD
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The Powerflex Black Series is engineered for maximum performance and minimum deflection

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