These are compatible with all Wrangler TJ's and LJ's, Cherokee XJ's and Grand Cherokee ZJ's. They are used to eliminate or replace the cam bolts on the front lower control arms at the axle mount. The bolts are heavy duty Grade 8 Yellow zinc plated with Grade 8 lock nuts. The cam plates are laser cut 3/16" thick steel. They are zinc plated and ready to install. Includes: 4 cam delete plates, 2 9/16" Grade 8 Bolts, 2 9/16" Grade 8 nylock nuts.