BMW Drivetrain Parts for BMW 8 Series E31 (1991-1997)

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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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Bav Auto Differential, Transfer Case, Transmission Oil-Pan Wrench
Bav Auto Differential, Transfer Case, Transmission Oil-Pan Wrench ...
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Bav Auto Tools - Corporate Logo
T#:580353
Part#: B8800025
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The proper size for removing BMW drain plugs.
IRP Universal Short Shifter V3 CS (Centering Spring) - Black Reverse Button
IRP Universal Short Shifter V3 CS (Centering Spring) - Black Reverse ...
IRP - Individual Racing Parts - Corporate Logo
T#:569029
Part#: IRPSS-3BCS
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$ 475.99 USD
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IRP (Individual Race Parts) is a performance aftermarket parts company that focuses on high quality and long term reliability. The Universal Short Shifter V3 CS was developed to express their belief and compete with the much more expensive CAE Ultra Shifter, but at half the cost. The entire shifter assembly is made from all anodized aluminum and stainless steel for strength, durability, and looks. The V3 CS is a perfect replacement when looking for a shifter that gives you short, crisp, precise shifts with a 60% reduction in travel, plus a new return to center feature.
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Differential Fluid Extraction Adapter
Differential Fluid Extraction Adapter
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Bav Auto Tools - Corporate Logo
T#:578659
Part#: B3300000
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Differential Fluid Extraction Adapter is an essential tool for efficiently draining and refilling differential fluid, ensuring your vehicle's differential system remains in optimal condition. Designed to work with most extraction pumps, this adapter simplifies maintenance tasks, making it easier to service your differential without the mess or hassle of traditional methods.

  • Efficient fluid extraction: Allows for quick and clean draining of differential fluid.
  • Versatile compatibility: Works with most extraction pumps, offering flexibility for various vehicle makes and models.
  • Hassle-free maintenance: Simplifies the process of refilling and draining differential fluid, reducing time and effort.
  • Durable construction: Built from high-quality materials to withstand frequent use and harsh conditions.
  • Easy installation: Designed for a secure fit and easy attachment to extraction pumps.

This Differential Fluid Extraction Adapter is a must-have for any vehicle owner looking to maintain the longevity and performance of their differential system.

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IRP BMW Short Shifter Dust Boot - For IRP V2, V3 & V3 CS Short Shifters
IRP BMW Short Shifter Dust Boot - For IRP V2, V3 & V3 CS Short Shifte...
IRP - Individual Racing Parts - Corporate Logo
T#:569037
Part#: IRPSS-DB
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$ 52.99 USD
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Developed specifically for the IRP V2, V3, and V3 CS Short shifters, this Dust Boot mounts to the short shifters base to keep out dirt and noise that would normally come through the otherwise unprotected opening in your center console.
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Bav Auto Transmission/Differential Drain Plug Socket Set
Bav Auto Transmission/Differential Drain Plug Socket Set
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Bav Auto Tools - Corporate Logo
T#:580446
Part#: B8800141
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$ 27.74 USD
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Drain plug socket set. Set of 3 hex-head sockets make removal of transmission and differential drain plugs so much easier. Includes 10mm, 14mm and 17mm sizes. 3/8" drive
Powerflex BMW Shifter Carrier Arm Bushing - Oval
Powerflex BMW Shifter Carrier Arm Bushing - Oval
Powerflex - Corporate Logo
T#:34315164
Part#: PFF5-4631H
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$ 30.99 USD
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The BMW Shifter Carrier Arm Bushings - Oval are essential components designed to support and stabilize the shifter assembly in various BMW models. These bushings ensure a firm and accurate connection between the shifter carrier arm and the vehicle chassis, resulting in smoother, more precise gear shifts.

Key Features:

  1. Oval Design for Stability:

    • The oval shape of these bushings provides a secure fit, ensuring that the shifter carrier arm stays properly aligned. This helps reduce excess play and maintains the integrity of the shifter assembly over time.

  2. Enhanced Shifting Accuracy:

    • By minimizing unwanted movement and flex in the shifter mechanism, these bushings provide a more direct and controlled shifting experience, improving the feel of each gear change.

  3. Durable and Long-Lasting:

    • Constructed from high-quality, durable materials, these bushings are built to withstand the stresses of everyday driving and high-performance use. They offer long-lasting reliability, even under demanding conditions.

  4. Improved Driving Experience:

    • Replacing worn-out or degraded bushings can significantly enhance the overall driving experience. With new oval bushings installed, drivers will enjoy tighter, more responsive gear shifts, leading to a more engaging and enjoyable driving dynamic.

  5. Easy Installation:

    • These bushings are designed to fit seamlessly into the shifter assembly of various BMW models. While installation can be handled by DIY enthusiasts, professional installation is recommended for optimal alignment and performance.

  6. Wide Compatibility:

    • Suitable for a range of BMW models, these bushings are a versatile and valuable upgrade or replacement for drivers looking to restore or improve their vehicle’s shifter performance.

Benefits of Upgrading or Replacing:

  • Tighter Shifting Feel: New oval bushings restore precision to the shifter assembly, eliminating the slack that develops over time in worn bushings, providing a more connected driving experience.
  • Reduced Vibrations and Noise: Fresh bushings help dampen vibrations and reduce noise from the shifter assembly, contributing to a smoother, quieter ride.
  • Extended Shifter Life: By maintaining proper alignment and reducing stress on other components, replacing old bushings can help extend the life of the entire shifter assembly.

In summary, the BMW Shifter Carrier Arm Bushings - Oval are a crucial upgrade for drivers looking to improve the performance and feel of their shifter. With enhanced durability, improved shifting precision, and a better driving experience, these bushings are a valuable investment for any BMW enthusiast.

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Bav Auto Fluid Transfer Pump - 200ml - Viton Seals
Bav Auto Fluid Transfer Pump - 200ml - Viton Seals
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Bav Auto Tools - Corporate Logo
T#:580336
Part#: B8800004
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$ 29.24 USD
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Use this high-quality fluid transfer pump to remove old fluid from power steering reservoirs, brake fluid reservoirs or differentials that do not have drain plugs (as on many later model BMWs), or to fill transmissions, differentials, and any other assemblies when changing the fluids.
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Clutch Slave Cylinder Bleeder Tool
Clutch Slave Cylinder Bleeder Tool
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Bav Auto Tools - Corporate Logo
T#:585675
Part#: CBTTOOL
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$ 70.42 USD
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Bleed your slave cylinder with confidence using this clutch slave cylinder bleeder tool. Get the job done right the first time and assure that your clutch pressure is appropriate. Use the tools' adjustable piston rod to apply pressure to the cylinders' piston rod, making the process much simpler.
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Bav Auto Wheel Hub and Rotor Grinding Kit
Bav Auto Wheel Hub and Rotor Grinding Kit
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Bav Auto Tools - Corporate Logo
T#:580437
Part#: B8800132
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$ 43.19 USD
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Used to remove corrosion and ensure brake rotors, wheel spacers, etc sit flush on your hubs
Bav Auto Axle Shaft Impact Force Screw Adapter
Bav Auto Axle Shaft Impact Force Screw Adapter
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Bav Auto Tools - Corporate Logo
T#:580429
Part#: B8800122
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$ 36.89 USD
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For use with B8800120 (Hub Puller Adapter) as an impact driver to aid in removal of stuck CV axle shafts.
Powerflex Transmission Mount Bushing - Street
Powerflex Transmission Mount Bushing - Street
Powerflex - Corporate Logo
T#:9771556
Part#: PFF5-4655
Ships on Sep 22, 2026
$ 118.99 USD
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Secure your gearbox and sharpen shifting response. These 150% stiffer polyurethane transmission mounts isolate drivetrain twist to protect against track mis-shifts and maximize corner-exit power delivery
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Bav Auto Hub Adapter / Hub Puller
Bav Auto Hub Adapter / Hub Puller
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Bav Auto Tools - Corporate Logo
T#:580427
Part#: B8800120
Ships on Oct 19, 2026
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$ 98.99 USD
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For use with B8800122 impact driver to remove stuck CV axle shafts.
Bav Auto Oil Extractor - 10 Liter - Inserts Into Dip Stick Tube
Bav Auto Oil Extractor - 10 Liter - Inserts Into Dip Stick Tube ...
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Bav Auto Tools - Corporate Logo
T#:580333
Part#: B8800001
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Sale - Save 15% $ 171.99

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$ 146.19 USD
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Change your oil without getting underneath the vehicle! This oil extractor pulls the oil out of your engine through the dip stick tube.
Bav Auto Fluid Transfer Pump - 1 Liter - Viton Seals
Bav Auto Fluid Transfer Pump - 1 Liter - Viton Seals
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Bav Auto Tools - Corporate Logo
T#:580335
Part#: B8800003
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$ 51.84 USD
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Use this high-quality fluid transfer pump to remove old fluid from power steering reservoirs, brake fluid reservoirs or differentials that do not have drain plugs (as on many later model BMWs), or to fill transmissions, differentials, and any other assemblies when changing the fluids. For draining differentials we recommend using the Bavarian Autosport adapter part # B3300000.
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Bav Auto Wheel Bearing Tool Master Set
Bav Auto Wheel Bearing Tool Master Set
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Bav Auto Tools - Corporate Logo
T#:580402
Part#: B8800092
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$ 338.19 USD
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For removal and installation of pressed in rear wheel bearings on most BMW's and pressed in front wheel bearing on many all-wheel drive BMWs.
Mishimoto Universal Automatic Transmission/Power Steering Cooler
Mishimoto Universal Automatic Transmission/Power Steering Cooler ...
For Automatic Transmissions only
Mishimoto - Corporate Logo
T#:378417
Part#: MMTCU
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$ 110.99 USD
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The Mishimoto Universal Transmission & Power Steering Cooler is used to cool automatic transmissions. Some Mishimoto radiators are only available for manual transmission applications; by using the universal transmission cooler, automatic transmission users have the ability to use our aluminum radiators with their automatic applications that would otherwise require an integrated transmission cooler. Fender bender damage your cooler? Mishimoto has you covered under its no questions asked warranty policy. Mishimoto will provide a warranty for all claims including vehicles involved in accidents. Warranty claims must include pictures of the accident and an official police report, and must be within three months of the accident. Dimensions of this core are 3/4" x 5" x 12". WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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E9 - E34 Powerflex Clutch Fork Pivot Pin - PFF5-370
E9 - E34 Powerflex Clutch Fork Pivot Pin - PFF5-370
Powerflex - Corporate Logo
T#:22064629
Part#: PFF5-370
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$ 29.99 USD
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When it comes to optimizing your BMW's performance and ensuring its longevity, the Powerflex Clutch Fork Pivot Pin stands out as a crucial aftermarket enhancement that should not be underestimated. This top-tier automotive component offers a host of advantages that can significantly enhance your driving experience and preserve the condition of your cherished BMW. Enhanced Clutch Performance: The Powerflex Clutch Fork Pivot Pin is meticulously engineered to provide smoother and more precise clutch engagement. This translates into a more responsive and seamless shifting experience, granting you greater control while driving. Prolonged Clutch Lifespan: By optimizing clutch operation, this aftermarket pin reduces unnecessary wear and tear on your clutch components. This not only extends the life of your clutch system but also helps you avoid costly clutch replacements and maintenance in the future. Refined Shifting Experience: A well-maintained clutch fork pivot pin ensures more consistent and precise gear shifts. This leads to smoother and more efficient gear changes, resulting in an overall improvement in your driving experience. Built to Last: Crafted from premium materials, the Powerflex Clutch Fork Pivot Pin is designed to endure the demands of everyday driving. Its durability guarantees long-lasting performance, even in challenging conditions. Cost-Effective Enhancement: Upgrading your BMW with the Powerflex Clutch Fork Pivot Pin is a cost-effective way to optimize your clutch system. It offers substantial improvements without the need for a complete clutch replacement, saving you both time and money. Compatibility Across BMW Models: The Powerflex Clutch Fork Pivot Pin is designed to fit a wide range of BMW models, ensuring it is compatible with your specific vehicle. OE / OEM Cross Reference Numbers: 21518607922 Fits these BMW models: 3 Series E21 320i/323i (1975-1977) E21 320i/323i (1978-1983) E30 3 Series (1984-1991) 5 Series E28 5 Series (1982-1988) E34 5 Series (1989-1995) 6 Series E24 6 Series (1979-1989) 7 Series E32 7 Series (1988-1994) Z Series Z1 (1988-1991)
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IRP Universal Short shifter V3 - Black Reverse Button
IRP Universal Short shifter V3 - Black Reverse Button
IRP - Individual Racing Parts - Corporate Logo
T#:401279
Part#: IRPSS-3B
Ships on Nov 4, 2026
$ 536.99 USD
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$ 536.99 USD
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The shifter in manual BMWs are said to provide a perfect blend of a sporty and comfortable feel. For some, this is perfect. For others that daily drive or track their BMW, they want shorter shifter travel and a much tighter feel. If you are one of these people, then we have a great option for you, the Short Shifter V3 from IRP, the successor of the V2.
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Bav Auto 36MM 12 Point Socket - 1/2" Drive
Bav Auto 36MM 12 Point Socket - 1/2" Drive
10X Entries Into Our F80 M3 Sweepstakes
Bav Auto Tools - Corporate Logo
T#:580421
Part#: B8800114
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$ 22.49 USD
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This is a thin-walled 1/2" drive 36mm impact socket - useful in removing or installing wheel bearing and axle nuts on several BMW models.
IRP V2 Short shifter - BMW 5 & 6 Speed
IRP V2 Short shifter - BMW 5 & 6 Speed
IRP - Individual Racing Parts - Corporate Logo
T#:401261
Part#: IRPSS-2B
Special Order: No Guaranteed ETA
$ 420.99 USD
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$ 420.99 USD
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The shifter in manual BMWs are said to provide a perfect blend of a sporty and comfortable feel. For some, this is perfect. For others that daily drive or track their BMW, they want shorter shifter travel and a much tighter feel. If you are one of these people, then we have a great option for you, the Short Shifter V2 from IRP.
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Powerfex Transmission Mount Bushing - Performance
Powerfex Transmission Mount Bushing - Performance
Powerflex - Corporate Logo
T#:9771557
Part#: PFF5-4655P
Ships in 5 Business Days
$ 118.99 USD
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Lock down your gearbox centerline. These 80A durometer polyurethane mounts increase transmission rigidity by 260% using CNC-machined aluminum caps, eliminating high-RPM shifter twist and structural mis-shifts on track.
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Bav Auto Hub Puller Slide Hammer Adapter
Bav Auto Hub Puller Slide Hammer Adapter
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Bav Auto Tools - Corporate Logo
T#:580428
Part#: B8800121
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$ 17.99 USD
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Necessary in order to use Bav Auto's Hub Adapter/Puller (B8800120) . 5/8" x 18T UNF thread.
Bav Auto Transmission 17mm Drain Plug Wrench - Manual Transmission
Bav Auto Transmission 17mm Drain Plug Wrench - Manual Transmission ...
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Bav Auto Tools - Corporate Logo
T#:580447
Part#: B8800142
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$ 14.99 USD
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Makes changing your transmission fluid an easy task. 1/2 " drive, for use in BMWs with 17mm female allen transmission drain plugs.
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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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 Transmission Mount Bushing - Black Series
Powerflex Transmission Mount Bushing - Black Series
Powerflex - Corporate Logo
T#:54388342
Part#: PFF5-4655BLK
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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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