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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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Corteco Transmission Mount - E32, E34, E39

For vehicles with manual transmission only

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T#:371825

Part#: 22316771221

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$ 23.99 USD

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$ 23.99 USD

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Stop driveline vibration

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

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T#:1387

Part#: BM237-HA

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$ 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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Differential And LSD Tune

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T#:34382136

Part#: BM237HAKT

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$ 2,100.00 USD

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$ 2,100.00 USD

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Upgrade to a better performing LSD, includes tune.

Transmission Output Seal - E46 M3, E39 540i, M5, E60 M5, E63 M6 ...

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T#:19676

Part#: 23121222769

Ships in 1 day

$ 11.71 USD

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$ 11.71 USD

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This is the OEM transmission rear output seal for cars with the S6S420G or GS7S47BG transmissions. It is a good idea to replace all the seals on the transmission whenever replacing a clutch as it is much easier to do while the transmission is down off the car and these seals commonly develop leaks over time. This seal works with either the manual transmission or the SMG transmission.

This item fits the following BMWs:
2001-2006 E46 BMW M3
1993-1995 E34 BMW 540i
1997-2003 E39 BMW 540i M5
2006-2010 E60 BMW M5
2006-2010 E63 BMW M6

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Corteco Selector Rod Shaft Seal

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T#:585859

Part#: 24147571213

In Stock

$ 10.99 USD

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$ 10.99 USD

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Sealing ring for the transmission gear selector rod Fits the following transmissions: GA6HP19 GA6HP19Z GA6HP26Z A5S325Z A5S310Z A5S440Z A5S560Z ZF 4HP22/24 ZF 4HP22/24-EH ZF 3HP22

Corteco Transmission Mount - E31, E32, E34

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T#:592093

Part#: 23701141614

Ships in 1 Business Day

$ 12.99 USD

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$ 12.99 USD

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Secure the rear of the transmission to the crossmember

Corteco Manual Transmission Input Shaft Seal - Multiple BMWs ...

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T#:641768

Part#: 23121220619

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$ 10.99 USD

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$ 10.99 USD

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This is the transmission input shaft seal for cars with the Getrag 260/5/50, 260/6, 265/6, 280, transmissions

LSD Tune For OS Giken Differential

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T#:34382134

Part#: LSD-TUNE

Ships in 2 Business Days

$ 150.00 USD

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$ 150.00 USD

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Corteco Transmission Mount - Left - E34, E36

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T#:369634

Part#: 24701138427

Ships in 1-2 days

$ 17.99

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

$ 17.00 USD

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$ 17.00 USD

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located on the transmission cross member

Output Shaft Oil Seal

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T#:593697

Part#: 01033864B

Ships in 1-2 days

$ 9.26 USD

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$ 9.26 USD

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A worn out output shaft seal can let transmission fluid leak around it and let debris into the transmission possibly shortening its life.

Engine Mount - Right

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T#:594932

Part#: 11811094150

Back Ordered

$ 55.99 USD

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$ 55.99 USD

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Excessive driveline vibration is caused by one of a few things, but more than likely, it is the mounts in your vehicle. They keep your engine and transmission secure for more positive shifting and driveline triangulation as well as absorbing vibration. If any of these are occurring in your BMW, it's time to examine your mounts.

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