Revshift polyurethane differential bushings completely replace the oem rubber bushings on all BMW E36 cars except for the 318ti. These bushings stiffen the differential improving the vehicles handling capabilities. The two rearward bushings are a two piece design which securely hold 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 Includes new class 10.9 bolts Revshift bushing lube included Lifetime warranty We offer a 14mm (2.0 thread pitch) bolt option for the front bushing. The OEM front bolt size is 12mm and it is the standard option. Drilling and tapping the differential housing for a 14mm bolt is a common upgrade. Please specify if you want the OEM bolt or the 14mm bolt. Sold as a complete set Hardness80A 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
