The Tuff Country 4-inch Uni‑Ball lift kit for 2007–2013 Chevrolet Silverado 1500 4x4 uses an upper control arm design to lift the front 4 inches and the rear 2 inches. It’s promoted as an affordable, straightforward installation that keeps factory geometry through tubular upper control arms, spacers and differential drops, aiming to preserve ride quality while increasing clearance and durability.
Tuff Country 07-13 Chevy Silverado 1500 4x4 4in Uni-Ball Lift Kit (No Shocks)