1960-1972 Chevy/GMC 1" Lowering Blocks. These lowering blocks are designed to be used with trucks with trailing arms and coil springs and will not work with trucks with leaf springs. They mount between the trailing arm and rear end housing and include longer u-bolts and hardware. Kit includes billet aluminum blocks, u-bolts, nuts and washers. These kits work with all 1960-1972 C-10/C-20 Chevy trucks with coil springs and trailing arms.
