[Vehicle Fitment]: Compatible with 1982-2003 S10 RWD 1991-2003 Sonoma RWD 1982-1992 Camaro; Firebird 1978-1988 Monte Carlo; Cutlass Supreme 1978-1987 El Camino; Regal; Grand Prix; Caballero 1978-1983 Malibu 1982-1990 S15 RWD 1983-1994 S10 Blazer RWD 1995-1997 Blazer RWD 1996-2000 Hombre RWD 1978-1984 Cutlass Calais 1992-1997 Jimmy RWD -- Front Left and Right, Driver and Passenger Side [Reference Number]: 18005263, 18005262, 8180232820, 8180232810, 184071, 184072, 18P4071, 18P4072, 18-4071, 18-4072, 18-P4071, 18-P4072. Bleeder port size: M10x1.5, Inlet port size: 0.39, Piston count: 1, Piston size: 2.50 in [Directly Fit]: OE Replacement Brand New Brake Caliper Assembly, including Brake Caliper, Phenolic Piston, Installation Hardwares. Please enter your vehicle information in the top left corner of listing [OEM Specifications]: All calipers are thoroughly inspected and 100% pressure tested for quality and safety, they will help get back the optimal braking performance of your vehicle’s [Long-Term Service]: KAX has been committed to the development and production of automotive parts for 15 years, and produces any part that matches 100% with the original car, and the quality is worthy of your trust, with a 3-years warranty