This is another traction control device that we have discovered. This unique style of bar offers unequaled control during hard acceleration without any welding or modification to the car. Preload is fully adjustable and properly adjusted, and can be used successfully in road racing as well. Mostly used for drag racing, a great alternative to other styles of more complicated bars and ladder systems that need considerable fabrication to install. Comes complete with all mounting hardware, which includes leaf spring perches that will accept both staggered and regular shocks. For rear end housings with standard 2-1/2” wide spring pads. Instructions are included. Gloss black powder coat finish. Must be special ordered for other applications or use with mid eye springs.