The Superlift 1.5-inch block kit for 1973–1987 Chevy K20 and GMC K25 pickup 4WD applications provides a 1.5-inch rear lift via cast iron blocks sized for these full-size 4WD trucks. The package includes two cast iron blocks, four U-bolts and all nuts and washers needed to install the blocks, and the kit is covered by a limited lifetime warranty.
Superlift 73-87 Chevy K20/GMC K25 Pickup 4WD 1.5in Block Kit