The Revshift polyurethane secondary differential bushing adds a second mounting point to the rear side of the differential on the BMW F80 / F82 / F83 / F87 - M4 / M3 / M2. This bushing must be used with a dual mount differential bracket. The oem differential bracket is not compatible. The goal of this secondary bushing is to reduce the movement of the differential under load. These bushings are a two piece design which securely holds the differential in place preventing it from sliding or twisting.
- Improves handing
- Will not wear out like oem bushings
- Properly dampens the differential
- Prevents differential from moving / twisting
- Revshift bushing lube included
Lifetime warranty
Sold as a complete set
Hardness
80A Street (Black): Slightly stiffer and stronger than OEM rubber. No increase in NVH. Great choice as an upgraded stock replacement (OEM+).
95A Track (Green): Significantly stiffer and stronger than OEM rubber. Noticeable increase in NVH. Excellent for enthusiastically driven street and track cars.
75D Drift (Teal): Drastically stiffer and stronger than OEM rubber. Moderate increase in NVH. Most commonly used on dedicated drift and track cars.
(NVH = noise, vibration, harmonics)
Learn more about choosing polyurethane here: https://revshift.com/pages/polyurethane
Please specify the hardness