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Drivetrain Mount Kits

Want to overhaul all of your old, tired drivetrain mounts? Our drivetrain mount packages generally include engine and transmission mounts, sometimes going back to subframe and diff bushings. When replacing engine and transmission mounts, it is important to keep both consistent in terms of a material. For example, if you are running poly engine mounts, you should run poly trans mounts. If you are running solid engine mounts, you should run solid engine mounts. Mixing the two can cause issues you don't want to deal with.
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BMW E46 Z4 Performance Polyurethane Differential Bushing Set - Front ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:378219
Part#: 002447ECS04KT
In Stock
Sale - Save 25% $ 112.99

This product was last offered at the strikethrough price on
06-13-2026

$ 84.74 USD
Free Shipping
Sale - Save 25%
$ 112.99

This product was last offered at the strikethrough price on
06-13-2026

$ 84.74 USD
Free Shipping

Your rear differential is indirectly connected to your right foot through the engine and driveline, and connected to the seat of your pants through the chassis. Soft factory rubber differential bushings absorb vibrations between chassis and differential, providing comfort and softness in both of these connections.

Enter ECS Tuning's In-House Engineered Performance Polyurethane Differential Bushings. By eliminating the deflection factory rubber bushings permit, the connection between your right foot (and your seat) to the wheels is improved. Removal of this slop allows for crisper power transfer from differential to wheels, which means better throttle control while carving a canyon road, drag racing, sliding the rear end out, or just driving to work. This is achieved without the harshness or vibration associated with delrin or solid differential mounts.

Featuring a tough 88A durometer polyurethane and Black anodized 6061-T6 aluminum Sleeve, our Performance Polyurethane Differential Bushings are more resistant to chemicals, ozone degradation, road salt, and general wear and tear than factory rubber bushings, resulting in a longer service life.

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Revshift Solid Bolt-Through Motor Mounts & Trans Mount Kit - BMW E30 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Revshift - Corporate Logo
T#:1105937
Part#: SMK-E30
Ships in 9 Business Days
$ 64.99 USD
Free Shipping
$ 64.99 USD
Free Shipping
Solid bolt through 70D polyurethane motor and trans mounts. Recommended for race use only. These mounts are designed for a 1983-1991 E30 BMW 3-series with an M20 engine. Revshift motor mounts are made by Revshift in the U.S.A. from high-quality polyurethane. 70D polyurethane has a comparable hardness to plastics such as Delrin and UHMW. Unlike plastic, polyurethane is an elastomer which means it will return to its original shape if deformed and it will not crack. We do not recommend plastics for automotive use due to their inherent brittleness and inability to return to their original shape when deformed. Revshift Performance Engineering is a high-performance parts manufacturer with a focus on quality, reliability, and performance. Utilizing high-precision machining technologies and their very own Polyurethane Manufacturing Department, every Revshift product is designed, manufactured, and tested in-house at their Detroit, Michigan facility.
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