VintCo has all new Fox Air Shock Upper Caps to help you keep the ride going Air Shock Upper Caps is made with modern materials and manufacturing techniques to ensure an as good or better fitment to the original Fox Air Shocks One kit will work for one shock (order two if rebuilding two shocks) Every rebuild part is available for your Fox Air Shocks at VintCo 1 Shock Upper Cap 1 Shock Cap Bushing 1 Kit will rebuild 1 shock. UPPER CAP KIT SUC01