GM Blocks & U-bolts

Rear blocks are a great way to lift the rear of a leaf spring vehicle without affecting the ride. Blocks come in a variety of sizes and are tapered for driveshaft alignment. Depending on the brand, blocks can be made from aluminum or cast iron. Blocks may be purchased as pairs or in kits containing u-bolts.

BLOCKS SHOULD NEVER BE USED ON FRONT AXLES! Severe handling problems may occur that can cause an accident or even death.