CAD-engineered TeraFlex TJ: 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. On higher lifts, TeraFlex TJ: Lower LCG Long Arm Frame Brackets reposition the frame-end control arm mounting points to restore near factory orientation to reduce bushing stress during droop and shock load transferred through the control arms. Can be added to an existing suspension lift. Must be used with adjustable LCG Long Control Arms (NOT INCLUDED) to optimize caster angle and tune anti-squat geometry for proper suspension alignment on TJ Wrangler/Unlimited models with 3-5in lifts.