The DSE Speed Kit 2 is designed to lower the ride height of your 1973-87 GM C10 Square Body truck 5-6 inches in the rear. The Speed Kit 2 features a leaf spring flip kit, c-notch, and drop shocks for a complete rear lowering solution. The flip kit axle pad and plate are manufactured from high-quality 1/4" thick steel and powder coated black for strength and durability. Detroit Speed has designed this kit with two leaf spring pinhole locations in the axle pad to have adjustability in centering up your rear axle. There are new electroplated U-bolts and hardware included in this kit. The Detroit Speed leaf spring frame notch bracket kit is designed to give you the proper rear axle to frame clearance needed when doing an axle flip. The c-notch is manufactured from high-quality 3/16" thick steel and powder coated black for durability. All mounting hardware and bump stops are included.