TeraFlex JL: Alpine Long Arms and Long Arm Brackets (NOT INCLUDED) provide complete alignment adjustability and dependability for maximum performance on JL Wrangler/Unlimited models with 3–6” lifts. High-quality, dependable, maintenance-free, factory-style bushings provide excellent NVH damping and ride quality. MUST be used with Long Arm Bracket Kit (JL 2dr: # 1958002) (JL 4dr: # 1958000) — NOT INCLUDED. Can be added to any existing suspension lift.