The Prothane rear upper control arm bushing kit for 1959–1964 GM full-size cars supplies replacement bushings for two upper arms in black. This direct-fit kit is intended to restore mounting for the rear upper control arms and helps maintain correct suspension attachment points for older GM full-size vehicles without changing factory geometry.
Prothane 59-64 GM Full Size Rear Upper Control Arm Bushings (for Two Uppers) - Black