The upper and lower control links are replaced with extended length 1 3/4" OD link arms and heavy duty frame brackets that utilize 5.5" tall coil springs for outstanding on and offroad ride. System also includes a Trac Bar relocation bracket, Pitman Arm, Bump Stops and more. Rear lift includes a Block and Add-a-Leaf combo. Other options include a front Multiple Shock System for hardcore offroad use.