TeraFlex TJ: LCG Long Control Arms and LCG Long Arm Brackets (NOT INCLUDED) provide complete alignment adjustability for maximum performance on TJ Wrangler/Unlimited models with 3-5in lifts. Must be used with LCG Long Arm Frame Brackets and/or Rear Axle Truss – NOT INCLUDED. On higher lifts, the Rear Upper Pro LCG Triangulated 4-Link Long Control Arms, Frame Brackets, and Rear Axle Truss convert the stock 5-link rear suspension to a triangulated 4-link suspension for increased flex while eliminating interference w/ other components. Repositioning the frame-end and axle end control arm mounting points relaxes the suspension link angles, which reduces bushing stress during extreme droop as well as shock load transferred through the LCG Long Control Arms. CAD-engineered LCG Long Arm Frame Brackets and Triangulated 4-Link Rear Axle Truss are designed for maximum strength. The 1/4in-thick steel brackets are CNC laser cut and precision bent for accurate fitment. Frame brackets locate using the factory belly pan skid plate bolt holes then stitch welded. These are the same components found in our high-end Pro LCG and/or Enduro LCG Long Arm Suspension Systems.