1992-1999 BMW E38 3-Series Differential Mount Bushings by ISR Performance Bushings definitely age and deteriorate as time goes on, and your E36 might need some refreshing. These bushings from ISR not only replace your bad bushings, but offer a performance upgrade from OEM bushings. Features Constructed from high-quality materials Applications 1992-1999 BMW E38 3-Series What’s In The Box? 1 – Differential Mount Bushing Kit Warranty ISR Performance’s Standard Limited Warranty