Tuff Country’s straight axle suspension lift kits for the 1969 thru 1987 GMC trucks 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.