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The Superlift 5-inch block kit for 1973–1987 Chevy K20 and GMC K25 pickup 4WD applications supplies a 5-inch rear lift using cast iron blocks tailored for those model years and rear-axle setups. Included are two cast iron blocks, four U-bolts plus all nuts and washers needed for installation; the kit is covered by a limited lifetime warranty.
Superlift 73-87 Chevy K20/GMC K25 Pickup 4WD 5in Block Kit
