you need to take the two leafs off the front and put on the rear. it will lift the vehicle 1.5", and move the axle forward an inch. basing this on a stock sammy for parts list: Missing links, 1"extended bone shackles, extended brake lines, shock hoops, driveline spacer, Trail Tough says solid bushing are needed, they dont list them on their site. call Trail tough and double check even though they r kind of assholes. this was the best mod i made to my Samurai for off road but i dont think its the best mod for onroad. it seem i got more vibration at higher speeds, panhard bar is kind of needed for steering, havent done it on mine yet.