The Barnes 4WD Rear Spring relocation Kit can be used on either a TJ or LJ. This kit can be used to locate the upper coil spring in a vertical position or works great when stretching your wheel base. You can still use your factory or aftermarket bump stops with this kit. Welding and cutting will be needed and you will reuse the factory coil spring plate. Like all of our products this kit is laser cut and made in the USA. Kit includes parts for both rear springs!