yes different kits for 92-95,96 and up. not sure if the pump was working before, I replaced the lift pump and OPS (both AC delco) just for preventative maintenance.
1992 6.5L 2500 4x4 Silverado Reg. cab flatbed. Things I've done: Injectors,glow plugs,GP harness, glow plug controller, lift pump, Leroy's lift pump harness, OPS.