Tuff Country 69-72 Chevy Blazer 4X4 4in Lift Kit EZ-Ride (w/52in Rear Springs SX8000 Shocks)Tuff Country's straight axle suspension lift kits feature the exclusive EZ Ride leaf springs. All springs are tapered, snub rolled and pre set for the most comfortable ride available in a lifted positive arch leaf spring. To reduce squeaking and improve ride characteristics teflon inserts are also used between each leaf. Available in sizes ranging from 2 inches up to 6 inches of lift. Kits can be purchased with rear leaf springs or rear axle blocks.