2" Front Lowering Drop Coil Springs For Chevy GMC C1500 2WD V8 1988-1998. 2" Drop Spindles For Chevy Silverado GMC Sierra C1500 2WD 88-1998 Lowering Kit. For GMC Sierra C1500 1/2 Ton 1988-1998. Front 4" Rear 6" Drop Kit w/Shock For Chevy GMC C1500 1988-98 W/1.25" ROTORS V8.