BMW Drivetrain Parts for BMW 5 Series E34 (1987-1995)

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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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E46 M3, E9X M3, E34 M5, E39 M5, Z4 M OS Giken Super Lock Limited Slip...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
OS Giken - Corporate Logo
T#:1387
Part#: BM237-HA
Ships in 3 Business Days
$ 1,950.00 USD
Free Shipping
$ 1,950.00 USD
Free Shipping
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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Differential And LSD Tune
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
OS Giken - Corporate Logo
T#:34382136
Part#: BM237HAKT
Ships in 3 Business Days
$ 2,100.00 USD
Free Shipping on orders $49 and up
Upgrade to a better performing LSD, includes tune.
LSD Tune For OS Giken Differential
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
OS Giken - Corporate Logo
T#:34382134
Part#: LSD-TUNE
Ships in 3 Business Days
$ 150.00 USD
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$ 150.00 USD
Free Shipping

Transmission Filter
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
5X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Hengst - Corporate Logo
T#:38587682
Part#: 24111218899
Ships in 10 Business Days
$ 25.99 USD
Free Shipping on orders $49 and up
$ 25.99 USD
Free Shipping on orders $49 and up
Throughout a vehicle’s lifespan, transmission maintenance is often overlooked. If neglected, automatic transmission fluid deteriorates, allowing sludge and deposits to contaminate the valve body and filter. This can cause poor shifting, slipping, and, ultimately, the need for transmission replacement.
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Automatic Transmission Filter Kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
5X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Hengst - Corporate Logo
T#:38553922
Part#: 24341422513
Ships on Aug 3, 2026
$ 28.99 USD
Free Shipping on orders $49 and up
Automatic transmissions are reliable, shift smoothly, and can last without issue so long as they are properly maintained. Over time, the transmission fluid becomes thick and the filter becomes contaminated with small metal particles. This can cause excess wear, high transmission operating temperatures, and eventual failure. To prevent this we recommend changing your filter, fluid, and seals to ensure your transmission continues to operate flawlessly. We recommend filter and fluid changes every 50,000 miles. This kit includes the transmission filter and gasket. This item fits the following BMWs: 1995-1999 E36 BMW M3 S50 S52
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