QA1 offers two bushing kits for our drag racing, street performance and street rod shocks. Part #B6031K kit consists of (2) two-piece urethane bushings, (2) 1/2'' sleeves, and (2) 5/8'' sleeves to fit on a Proma Star, Ultra Ride, Aluma Matic or Pro Coil System shock. Order (1) per shock.