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The Superlift 3-inch block kit for 1973–1991 Chevy K30 4WD applications (except dually) provides a 3-inch rear lift using cast iron blocks tailored for single‑wheel K30 4WD trucks. Included are two cast iron blocks, four U-bolts and all nuts and washers required for installation, and the kit is covered by a limited lifetime warranty.
Superlift 73-91 Chevy K30 4WD (Will NOT Fit Dually) 3in Block Kit
