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Tuff Country rear block and U-bolt kits for 1973–1991 Chevy Blazer 1/2 Ton 4WD deliver a 1.5-inch rear lift by inserting lift blocks between the factory axle and leaf spring. Each kit includes custom-fit lift blocks and extended zinc-plated U-bolts. This economical solution raises the rear end while preserving axle alignment and is intended for rear-axle applications on compatible Blazer models.
Tuff Country 73-91 Chevy Blazer 1/2 Ton 4wd 1.5in Rear Block & U-Bolt Kit
