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Tuff Country rear block and U-bolt kits for 1969–1972 Chevy 1/2 & 3/4 Ton 4WD provide a four-inch rear lift by inserting cast iron blocks between the factory axle and leaf spring. Each kit includes extended zinc-plated U-bolts and lift blocks custom fit for the application, offering an economical, application-specific solution to raise the rear end on compatible trucks and SUVs.
Tuff Country 69-72 Chevy Truck 1/2 & 3/4 Ton 4wd 4in Rear Block & U-Bolt Kit
