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The Skyjacker block and U-bolt kit for 1973–1987 GM 1/2-ton applications (as listed) provides a 3.5-inch tapered rear lift designed to correct pinion angle while minimizing driveline vibration. Ductile iron blocks include fixed center pins and the U-bolts are e-coated for corrosion resistance. This kit supplies a reliable rear lift solution and is covered by a limited lifetime warranty.
Skyjacker 1977-1991 GMC Jimmy Suspension Block and U-Bolt Kit
