Skyjacker Softride Series Add-A-Leaf 1-1/2 in Lift Rear Helper Spring Kit - Black Paint - Ford Fullsize Truck 2008-14 - Pair MT-X3-MM-RS Incorporates a QuickCar 3-3/8" diameter

Incorporates a QuickCar 3-3/8" diameter 10

281 in Diameter Hole

Ford Small Block 289/302/351W V8 4

OR HLY21-3

2002-2014 Chevrolet Suburban 1500

Skyjacker Softride Series Add-A-Leaf 1-1/2 in Lift Rear Helper Spring Kit - Black Paint - Ford Fullsize Truck 2008-14 - Pair MT-X3-MM-RS Incorporates a QuickCar 3-3/8" diameterSoftride Add a leafs use only American steel and are shot peened with hard steel pellets at very high velocities. This shot peening compresses the surface of the steel thereby increasing the tensile strength of the leaf. Without this shot peening procedure, the maximum wheel travel and ride quality could not be achieved without sacrificing the life of the leaf. The Skyjacker add a leafs are pre drilled for the center pin. Pin location varies with each