Fits Chevy Silverado & GMC Sierra 1500 2WD(1999 2006 & Classic) 3" Lift M1 23240 pcv valves AutoCross Yellow 4 5 8" Speedtachular seatbelts and accessories AutoCross Yellow 4 5 8" Speedtachular 6L V8 1967 1968 GMC C15 C1500 Suburban 327 5 you'll gain enough ground to run up to 31" tires Year Make Model Submodel 1999 2005 Chevrolet Silverado 1500 Base 1999 2006 Chevrolet Silverado 1500 LS 1999 2006 Chevrolet Silverado 1500 LT 1999 2006 GMC Sierra 1500 SL 1999 2006 GMC Sierra 1500 SLE 1999 2006 GMC Sierra 1500 SLT 2002 2006 Chevrolet Silverado 1500 WT 2002 2005 GMC Sierra 1500 Base 2002 GMC Sierra 1500 HT 2002 2006 GMC Sierra 1500 WT 2004 2006 Chevrolet Silverado 1500 Hybrid 2005 2006 Chevrolet Silverado 1500 SS 2005 2006 GMC Sierra 1500 Hybrid 2007 Chevrolet Silverado 1500 Classic Hybrid 2007 Chevrolet Silverado 1500 Classic LS 2007 Chevrolet Silverado 1500 Classic LT 2007 Chevrolet Silverado 1500 Classic SS 2007 Chevrolet Silverado 1500 Classic WT 2007 GMC Sierra 1500 Classic Hybrid 2007 GMC Sierra 1500 Classic SL 2007 GMC Sierra 1500 Classic SLE 2007 GMC Sierra 1500 Classic SLT 2007 GMC Sierra 1500 Classic WT