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BMW Drivetrain Parts for BMW Z Series E85/6 (2003-2008)

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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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CV Boot Kit - Inner - E31 E36 E46 Z3M Z4M

T#:369320

Part#: 33217840673

In Stock

$ 33.31

This product was last offered at the strikethrough price on
07-09-2026

$ 26.22 USD

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$ 26.22 USD

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This is a repair kit to replace an inner CV boot on your BMW axle.

GKN is a global company specializing in meeting the needs of the growing automotive industry. Every time you travel by road or air almost anywhere in the world it is likely that GKN is helping you on your way. Designing, manufacturing and service systems and components for original equipment manufacturers, GKN is also competitive in the automotive aftermarket.

Continuously evolving, pioneering new technologies and reinventing existing ones, GKN is always striving to better themselves in everything they do.

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CV Boot Repair Kit - (Inner)

T#:596750

Part#: 33211229435

In Stock at Vendor

$ 57.19

This product was last offered at the strikethrough price on
05-11-2026

$ 55.94 USD

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$ 55.94 USD

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This is the rear axle boot kit for the interior CV joint. The kit includes the boot, clip, clamp and grease. This boot can be used on the interior CV joint.

Ina Clutch Release/Throw-out Bearing - E46, E53, E60, E83, Z4 ...

We Price Match - Give Us A Call or Chat!

T#:19646

Part#: 21517521360

In Stock at Vendor

$ 74.38

This product was last offered at the strikethrough price on
07-03-2026

$ 74.19 USD

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$ 74.19 USD

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CLUTCH CLUTCH RELEASE BEARING

CV Boot Kit - Priced Each - E36 E39 E46 Z4

T#:376659

Part#: 33211229376

Ships in 1 day

$ 26.94 USD

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$ 26.94 USD

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GKN is a global company specializing in meeting the needs of the growing automotive industry. Every time you travel by road or air almost anywhere in the world it is likely that GKN is helping you on your way. Designing, manufacturing and service systems and components for original equipment manufacturers, GKN is also competitive in the automotive aftermarket.

Continuously evolving, pioneering new technologies and reinventing existing ones, GKN is always striving to better themselves in everything they do.

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GKN Rear Axle Shaft - Left E46

T#:594602

Part#: 33211229591

In Stock

$ 376.75

This product was last offered at the strikethrough price on
05-19-2026

$ 328.99 USD

Limited Qty Sale

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$ 376.75

This product was last offered at the strikethrough price on
05-19-2026

$ 328.99 USD

Limited Qty Sale

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New axle replacement for your BMW. Includes inner and outer CV joints.

Differential And LSD Tune

T#:34382136

Part#: BM237HAKT

Ships in 2 Business Days

$ 2,100.00 USD

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$ 2,100.00 USD

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Upgrade to a better performing LSD, includes tune.

E46 M3, E9X M3, E34 M5, E39 M5, Z4 M OS Giken Super Lock Limited Slip...

T#:1387

Part#: BM237-HA

Ships in 2 Business Days

$ 1,950.00 USD

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$ 1,950.00 USD

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The M Dynamic limited slip unit on the M3 is designed to be a pure street car differential. It's simply not up to the rigors of professional or amateur racing. The OS Giken Super Lock LSD is giant step up in from a stock M3 lsd unit. It's ready for the extreme conditions of racing, offers 100% progressive locking capability, and is able to do this while operating smoothly and quietly. It's use of advanced technologies that make it perfect for both street cars AND pro race cars... and everything in between. We're excited to be carrying the OS Giken LSD unit in our performance catalog, as we've been using them in our own Championship winning M3 race cars.

OS Giken incorporated revolutionary new ideas when developing the their own limited slip diff, utilizing their accumulated racing knowledge and experience and over 4 years of development. Their design 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!). This is such a great design, in that it can be used in any situation -- whether it's for a street car, or a 100% Professional race car. Zero break-in required. Super smooth and quiet engagement, and 100% progressive locking capability. Professional installation is recommended.

This Limited Slip Differential Unit fits the following BMWs:
2001-2006 E46 M3 coupe & convertible
2008-2013 E9X M3 coupe & convertible
1991-1995 E34 M5 sedan
1999-2003 E39 M5 sedan
2006-2008 E85 Z4M Z4 M Coupe, Z4 M Roadster

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Rear Axle Shaft - Right E46

T#:594594

Part#: 33211229592

In Stock at Vendor

$ 517.99

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

$ 502.99 USD

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$ 502.99 USD

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New axle replacement for your BMW. Includes inner and outer CV joints.

INA Clutch Pilot Bearing

We Price Match - Give Us A Call or Chat!

T#:399014

Part#: 034105313A

In Stock

$ 8.15

This product was last offered at the strikethrough price on
06-16-2026

$ 6.99 USD

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$ 6.99 USD

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Whenever you replace your clutch, you want to be sure that every single part that can be serviced while disassembled is new and in great shape. This saves you time down the road if a small component not serviced in a clutch change fails. This is a perfect replacement for your clutch pilot bearing with the same outside and inside diameter. A great way to be sure that everything installed during your clutch change works in harmony.

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LSD Tune For OS Giken Differential

T#:34382134

Part#: LSD-TUNE

Ships in 2 Business Days

$ 150.00 USD

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$ 150.00 USD

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