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This Skyjacker block and U-bolt kit for 1977–1991 GMC Jimmy models raises or levels the rear using ductile iron blocks with fixed center pins and tapered faces to address pinion angle. The included U-bolts are e-coated for corrosion resistance. Offered in standard lift sizes, the kit is a durable, kit-quality option for adding rear clearance and comes with a limited lifetime warranty.
Skyjacker 1977-1991 GMC Jimmy Suspension Block and U-Bolt Kit
