These shocks work by adjusting the lower spring perch height to adjust the ride height of your truck. They can keep factory ride height or drop as well. The factory springs are used for a quality ride.
02-09 Chevrolet TrailBlazer / GMC Envoy 2WD/4WD
06-09 Chevrolet Trailblazer SS
03-06 Chevrolet SSR
2 Front Adjustable Shocks