Tuff Country EZ-Ride Suspension produced their first leaf springs in 1988 for the early model Chevy and GMC Pickups which where included in their 2, 3, 4 and 6 inch suspension lift kits. These EZ-Ride leaf springs put Tuff Country on the map with off-road and truck enthusiasts. Know for their soft, comfortable ride not normally seen in a lifted leaf spring. Over the years Tuff Country has perfected their leaf springs and offer them for a large variety of makes and models including the very popular Jeep CJ7 4 inch leaf springs. All leafs are tapered, snub rolled, shot peened and pre-set. Most include poly bushings for lasting durability. Do not forget the awesome limited lifetime warranty.