SuperPro offers service kits for our range of fixed geometry upper control arm kits for customers that wish to rebuild or refresh their existing arm kits. Bushing Repair Kits include replacement SuperPro bushings for a single upper control arm. To service or refresh both upper control arms; two kits are required. These are press-fit like-for-like replacements for the originally included bushings and include new washers and crush tubes where required for a complete replacement. This service kit replaces the bushings in one left or right upper control arm from kit TRC6640 & TRC6645