Tuff Country 73-87 Chevy Truck 3/4 Ton 4wd 5.5in Rear Block & U-Bolt Kit

This is the Tuff Country 5.5-inch rear block and u-bolt kit, designed to give your 1973-1987 Chevy or GMC 3/4 ton 4WD truck a bit more height in the rear. It’s a straightforward way to level out your stance if you’ve added a lift to the front, or if you just want a more aggressive look. This kit works by inserting the included cast iron blocks between your factory leaf springs and rear axle.

You get a solid lift with this setup. The blocks are made from cast iron, which is a strong material for this application. Along with the blocks, the kit comes with extended, zinc-plated u-bolts. The zinc plating helps resist corrosion, keeping things looking good and functioning properly. These u-bolts are custom-fit for the specific truck applications this kit is designed for, making installation smoother.

This kit is specifically for the rear axle only and is a popular choice for owners looking for an economical way to adjust their truck's rear ride height. It fits a wide range of 3/4 ton 4WD trucks from the mid-70s through the late 80s, including models like the Chevy K20 Suburban and GMC K2500 Pickup.