Product Disclaimers: Important: The listed height range reflects the vehicleÕs drop range. Shocks alone do not lower your vehicle (except lowering struts). About this product Shocks features include: Metal dust boots, Hardened Chrome 15mm piston rods, Triple lip NBR rod seal, Teflon guide bushing, 35mm pistons w/ low friction Teflon seals, 51mm wide body for increased oil volume & OEM quality rubber bushings. Fitments Year Make Model Submodel Drive Type Engine Fuel Type Body Type Notes 1999 - 2005 Chevrolet Silverado 1500 Base RWD 4.3L GAS Extended Cab Pickup Lowering Rate: F: 4" or 5" / R: 6-7" 1999 - 2005 Chevrolet Silverado 1500 Base RWD 4.3L GAS Standard Cab Pickup Lowering Rate: F: 4" or 5" / R: 6-7" 1999 - 2005 Chevrolet Silverado 1500 Base RWD 4.8L GAS Extended Cab Pickup Lowering Rate: F: 4" or 5" / R: 6-7" 1999 - 2005 Chevrolet Silverado 1500 Base RWD 4.8L GAS Standard Cab Pickup Lowering Rate: F: 4" or 5" / R: 6-7" 2002 - 2005 Chevrolet Silverado 1500 Base RWD 5.3L FLEX Extended Cab Pickup Lowering Rate: F: 4" or 5" / R: 6-7" 2002 - 2005 Chevrolet Silverado 1500 Base RWD 5.3L FLEX Standard Cab Pickup Lowering Rate: F: 4" or 5" / R: 6-7" 1999 - 2005 Chevrolet Silverado 1500 Base RWD 5.3L GAS Extended Cab Pickup Lowering Rate: F: 4" or 5" / R: 6-7" 1999 - 2005 Chevrolet Silverado 1500 Base RWD 5.3L GAS Standard Cab Pickup Lowering Rate: F: 4" or 5" / R: 6-7" 2004 - 2006 Chevrolet Silverado 1500 LS RWD 4.3L Crew Cab Pickup Lowering Rate: F: 4" or 5" / R: 6-7" 1999 - 2006 Chevrolet Silverado 1500 LS RWD 4.3L GAS Extended Cab Pickup Lowering Rate: F: 4" or 5" / R: 6-7" 1999 - 2006 Chevrolet Silverado 1500 LS RWD 4.3L GAS Standard Cab Pickup Lowering Rate: F: 4" or 5" / R: 6-7" 2004 - 2006 Chevrolet Silverado 1500 LS RWD 4.8L Crew Cab Pickup Lowering Rate: F: 4" or 5" / R: 6-7" Media Installation: