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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Performance Clutch Pin - Grooved
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AGA Tools - Corporate Logo
T#:5135654
Part#: AGA-CPP-223-328
Ships in 7 Business Days
$ 45.99 USD
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An essential upgrade for every manual transmission equipped BMW!
Drive Shaft Wrench
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AGA Tools - Corporate Logo
T#:5189118
Part#: AGA-DSW-50
Ships in 7 Business Days
$ 199.00 USD
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$ 199.00 USD
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This tool is a must to properly disconnect the driveshaft.
Drive Shaft Holder
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AGA Tools - Corporate Logo
T#:5175755
Part#: AGA-DSH-40
Ships in 7 Business Days
$ 245.99 USD
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$ 245.99 USD
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Now removing the driveshaft can be a single man job!

Differential And LSD Tune
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OS Giken - Corporate Logo
T#:34382136
Part#: BM237HAKT
Ships in 2 Business Days
$ 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...
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OS Giken - Corporate Logo
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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Hex Low Profile Service Sockets
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AGA Tools - Corporate Logo
T#:5175654
Part#: AGA-SS-8-14-K
Ships in 7 Business Days
$ 169.00 USD
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$ 169.00 USD
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Due to minimal clearance, it’s difficult to get a hex socket in the gaps to remove plugs on rear differentials, transfer case and other engine drain/fill plugs.

Torque Wrench Adapter
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AGA Tools - Corporate Logo
T#:5189117
Part#: AGA-STA
Ships in 7 Business Days
$ 169.99 USD
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$ 169.99 USD
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Easily torque your driveshaft to specifications.
AGA Tools 8HP Park Release Tool
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AGA Tools - Corporate Logo
T#:26404886
Part#: AGA-8HP-PRT
Ships in 7 Business Days
$ 489.00 USD
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LSD Tune For OS Giken Differential
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OS Giken - Corporate Logo
T#:34382134
Part#: LSD-TUNE
Ships in 2 Business Days
$ 150.00 USD
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$ 150.00 USD
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