The Superlift 4-inch rear block kit for 1969–1972 Chevy 1/2 and 3/4 ton pickup 4WD applications provides a 4-inch rear lift using cast iron blocks designed for these classic 4WD pickups. The kit contains two cast iron blocks, four U-bolts plus all nuts and washers required for installation, and the product is covered by a limited lifetime warranty.
Superlift 69-72 Chevy 1/2 and 3/4 Ton Pickup 4WD 4in Rear Block Kit