Product updated on 2021-01-08, McGaughys - MCG:93047, 1999-06 Silverado/Sierra rear 4 inch kit, Includes flip kit and raising hanger, 2 or 4 wheel drive, McGaughys started off manufacturing suspension parts for classic Chevy cars but over the years they have evolved into a full line suspension manufacturer including Lowering Suspension, Lift Kits as well as Classic Car Suspension parts.