Clayton Off Road Pro Series Rear 3-Link Long Arm Upgrade Kit for 2004-2006 Jeep Wrangler LJ Unlimited

Is This for You?

• You're building a serious long-travel rear suspension on your LJ Unlimited and want a 3-link system with a 4-link axle truss, double-adjustable control arms, and Currie Johnny Joints at the frame ends — this Pro Series rear kit replaces the factory LJ rear suspension with a high-flex 3-link geometry using weld-on rear frame brackets, a 4-link axle truss, and double-adjustable control arms for precise suspension tuning.
• You want Currie Johnny Joints at the frame ends for 40° of unrestricted movement with shock-absorbing Tough 88 urethane casing — the Johnny Joint outperforms heim joints by adding urethane-based NVH isolation and shock absorption at the frame mount, where the highest lateral and longitudinal loads occur in a long arm rear suspension.
• You understand this is a fabrication-level install requiring welding and a custom exhaust — the rear frame brackets are weld-on, and the long arm geometry requires a custom exhaust to clear the new suspension layout. This is not a bolt-in kit. Professional fabrication capability is required.

The Result

• Pro Series rear 3-link long arm system — weld-on rear frame brackets, double-adjustable control arms, 4-link axle truss, and all hardware. Maximum rear articulation and suspension geometry correction for LJ builds.
• Currie Johnny Joints at frame ends — 40° movement, Tough 88 urethane casing for shock absorption and NVH isolation. GIIRO dual-durometer bushings at axle ends — maintenance-free, self-centering, NVH-isolating.
• Lifetime warranty on control arms. Welding required. Custom exhaust required. Not a bolt-in kit.

The COR-4807017 is Clayton Off Road's Pro Series rear 3-link long arm upgrade kit for the 2004–2006 Jeep Wrangler LJ Unlimited. This is a rear-half fabrication kit — it includes weld-on rear frame brackets, double-adjustable control arms, a 4-link axle truss, and all hardware. The 3-link rear geometry provides maximum axle articulation by eliminating the factory 4-link rear geometry's binding characteristics at extreme suspension travel. The frame-end joints are Currie Johnny Joints — a 3-piece design with a steel ball, Tough 88 urethane casing, and housing that provides 40° of unrestricted movement with the shock absorption and NVH isolation that heim joints cannot provide. The axle-end joints are GIIRO dual-durometer bushings — maintenance-free and self-centering. The double-adjustable control arms allow precise suspension geometry tuning for pinion angle, anti-squat, and arm length. Installation requires welding the rear frame brackets to the LJ frame and fabricating a custom exhaust to clear the new suspension layout. Professional fabrication capability is required. Lifetime warranty on control arms.

Audit Table

Verified Fitment (OFAS Standard)

✅ Fits 2004–2006 Jeep Wrangler LJ Unlimited — All Trims — Rear 3-Link Long Arm Upgrade Kit
❌ Does NOT fit Jeep Wrangler JK (2007–2018) — different rear frame and suspension architecture
❌ Does NOT fit Jeep Wrangler TJ (1997–2006, 2-Door) — different rear frame dimensions; LJ Unlimited only
❌ Does NOT fit Jeep Wrangler JL (2018–2026) — different rear suspension architecture
❌ Welding required — not a bolt-in kit
❌ Custom exhaust required — factory exhaust not compatible with long arm rear geometry

Installation & Fabrication Notes

• Welding required. The rear frame brackets are weld-on — professional fabrication capability or access to a certified welder is required. Do not attempt to run this kit with brackets only tack-welded or bolted temporarily.
• Custom exhaust required. The long arm rear geometry requires a custom exhaust to clear the new suspension layout. Plan and fabricate the exhaust before final installation of the rear suspension.
• Install the 4-link axle truss to the rear axle before installing the control arms — the truss reinforces the axle tube at the control arm mount locations.
• Weld the rear frame brackets to the LJ frame at the correct locations per Clayton's installation instructions — verify bracket position and angle before final weld-out.
• Install the double-adjustable control arms and set initial length per Clayton's geometry specifications for your lift height.
• Set pinion angle and anti-squat geometry with the vehicle at ride height after full installation.
• Rear alignment (toe, thrust angle) must be verified after installation.
• Torque all control arm hardware at ride height, not at full droop or compression.

Wheel & Tire Fitment

Compatible with standard LJ wheel and tire combinations. Long arm rear geometry affects suspension travel and tire clearance — verify clearance at full droop and full compression with your specific tire size after installation.

Engineering Question: Do you have access to a certified welder and the ability to fabricate a custom exhaust? This kit requires both — the rear frame brackets are weld-on and the factory exhaust will not clear the long arm rear geometry. Also confirm your vehicle is a 2004–2006 LJ Unlimited (4-door, long wheelbase) — this kit does not fit the standard 2-door TJ or any JK/JL platform.