Our spring plates feature heavy gauge steel construction and are designed to withstand greater torque required by extra heavy-duty 1/2” U-bolts. Will not flex or bend under extreme use or heavy shock loads. A perfect addition to your street car as well. Slotted to accommodate all year rear end housings with standard 2-1/2” wide spring pads, including larger than stock 3” diameter axle tubes. Automatically machined to accept our heavy-duty 1/2” U-bolts. Will NOT fit staggered shocks. Satin black powder coat finish.