Clayton Off Road Pro Series Rear Long Arm Upgrade Kit | No Welding Required | Currie Johnny Joints | GIIRO Bushings | 4-Link Axle Truss | 4"–8" Lift | 1997–2006 Jeep Wrangler TJ / 2004–2006 LJ Unlimited | SKU: COR-4805017
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Before ordering, verify your vehicle details, current setup, and SKU with OFAS fitment support so your upgrade matches your build.
Shipping & Delivery
Free shipping is available within the lower 48 U.S. states. Large or heavy items may ship by freight, and delivery timing can vary by warehouse, carrier, and product availability.
Fitment, Shipping & Product Support
Verified Fitment
This kit fits the 1997 through 2006 Jeep Wrangler TJ (2-Door) and the 2004 through 2006 Jeep Wrangler LJ Unlimited (4-Door) at 4" to 8" of rear lift. No welding required. This is the standard-length version — for the 5" wheelbase stretch version, see COR-4805302.
| Year Range | Make | Model | Configuration | Lift Range | Installation |
|---|---|---|---|---|---|
| 1997–2006 | Jeep | Wrangler TJ | 2-Door | 4"–8" | No welding required |
| 2004–2006 | Jeep | Wrangler LJ Unlimited | 4-Door | 4"–8" | No welding required |
Before ordering — confirm three items:
- Vehicle is a 1997–2006 TJ (2-door) or 2004–2006 LJ Unlimited (4-door) — not a JK or JL
- Lift height is 4" or greater
- A standard-length (no stretch) rear long arm upgrade is the goal — if a 5" wheelbase stretch is planned, order COR-4805302 instead
Verify fitment by text: (469) 407-7538
Does NOT Fit
| Exclusion | Reason | Correct SKU |
|---|---|---|
| Jeep Wrangler JK (2007–2018) | Different rear frame and suspension architecture | See JK rear long arm systems |
| Jeep Wrangler JL (2018–2026) | Different rear suspension architecture | Not applicable |
| Jeep Gladiator JT | Different rear suspension architecture | Not applicable |
| TJ/LJ builds running less than 4" of rear lift | Below 4", short arm geometry functions adequately — long arm conversion may not produce meaningful improvement | Confirm lift height before ordering |
| TJ/LJ builds running more than 8" of rear lift | Above 8", verify with Clayton before ordering | Text (469) 407-7538 |
| Buyers planning a 5" wheelbase stretch build | This is the standard-length kit. A stretch build requires COR-4805302, which uses weld-on brackets specifically positioned for a 5" rearward axle relocation. | COR-4805302 |
Verify fitment by text: (469) 407-7538
Component Specifications
| Specification | Detail |
|---|---|
| Part number | COR-4805017 |
| Application | Pro Series rear long arm upgrade kit — standard length, no stretch; TJ (1997–2006) and LJ Unlimited (2004–2006) |
| Lift range | 4"–8" |
| Wheelbase stretch | None — standard length. For 5" stretch version, see COR-4805302. |
| Frame brackets | Rear frame brackets — bolt-on to factory frame mount locations |
| Control arms | Upper and lower adjustable — geometry tuning for pinion angle and anti-squat |
| Frame-end joint | Currie Johnny Joint — 40° movement, Tough 88 urethane casing, shock-absorbing, NVH-isolating |
| Axle-end joint | GIIRO dual-durometer bushing — softer outer for NVH isolation, stiffer inner for lateral load resistance, maintenance-free, self-centering |
| Axle truss | 4-link rear axle truss — included; reinforces rear axle tube at control arm mount locations |
| Installation | No welding required |
| Warranty | Lifetime — all control arms |
| Unit weight | 31 lb |
| Shipping dimensions | 32" × 8" × 8" |
What Is and Is NOT Included
Included:
| Component |
|---|
| Rear frame brackets |
| Upper adjustable control arms (pair) with Currie Johnny Joint frame ends and GIIRO axle-end bushings |
| Lower adjustable control arms (pair) with Currie Johnny Joint frame ends and GIIRO axle-end bushings |
| 4-link rear axle truss |
| Hardware per Clayton specification |
Not Included:
| Item | Notes |
|---|---|
| Rear shocks | Long arm geometry changes the rear suspension travel arc — verify rear shock length is appropriate for your lift height after installation. Source separately if replacement shocks are required. |
| Professional installation labor | Qualified shop with TJ/LJ rear suspension experience recommended. Not included. |
Critical Compatibility
| Condition | Interaction | Action Required |
|---|---|---|
| Axle truss — install before control arms | The 4-link rear axle truss must be installed on the rear axle tube before the control arms are connected. The truss reinforces the axle tube at the control arm mount locations where long arm loads are applied. Installing control arms without the truss first risks deforming the axle tube under sustained trail loads. | Install included axle truss before attaching control arms. Follow Clayton's installation sequence. |
| Rear driveshaft angle | The longer arm geometry changes the rear pinion angle at lift height. Verify rear driveshaft U-joint operating angles after installation. In most cases the adjustable arms allow pinion angle correction within acceptable driveshaft operating angles, but confirm after installation. | Check rear driveshaft angle after setting pinion angle. Correct if operating angles are outside acceptable range. |
| Standard-length kit vs. stretch version | COR-4805017 is the standard-length rear long arm — factory rear axle position is maintained. COR-4805302 is the 5" stretch version — rear axle moves 5" rearward and requires welding, custom exhaust, custom rear driveshaft, and body modifications. If a stretch build is planned at any point, the bracket positions of these two kits are different — they are not interchangeable. | Confirm whether a stretch build is planned before ordering. A standard-length kit cannot be converted to a stretch kit by repositioning the brackets. |
| Rear alignment | Long arm rear conversion changes toe and thrust angle. Rear alignment verification is mandatory after installation. | Schedule rear alignment immediately after installation. |
| Lift height minimum — 4" | Below 4" of rear lift, factory short arm geometry remains within acceptable operating parameters. | Confirm rear lift height is 4" or greater before ordering. |
Installation Notes
Skill level: Intermediate to advanced. No welding required — this is a bolt-on rear long arm replacement. A qualified shop with TJ/LJ rear suspension experience is recommended for correct geometry setting.
Step 1 — Axle truss:
- Install the 4-link rear axle truss on the rear axle tube at the control arm mount locations per Clayton's installation instructions before installing any control arms.
Step 2 — Frame bracket and control arm installation:
- Install the rear frame brackets in the factory rear control arm frame mount locations.
- Install the upper and lower adjustable control arms at initial length per Clayton's geometry specifications for your lift height.
Step 3 — Geometry setting:
- Set pinion angle and anti-squat at static ride height.
- Torque all control arm hardware at ride height — not at full droop or compression.
Step 4 — Driveshaft and alignment:
- Verify rear driveshaft U-joint operating angles.
- Verify rear alignment — toe and thrust angle.
Required tools (qualified shop):
| Tool | Required |
|---|---|
| Vehicle lift rated for TJ/LJ | Yes |
| Torque wrench | Yes |
| Full socket and wrench set | Yes |
| Geometry setting and measurement equipment | Yes |
| Alignment equipment or appointment | Yes |
Common Questions
What is the difference between this and COR-4805302 (5" stretch version)?
Wheelbase and installation complexity. COR-4805017 (this kit) maintains the factory wheelbase — the rear axle stays in its factory position. No welding, no custom exhaust, no body modifications, no custom rear driveshaft. COR-4805302 moves the rear axle 5" rearward, allowing longer control arms and greater rear travel, but requires weld-on brackets, custom exhaust, body and fender modifications, and a custom-length rear driveshaft. If maximum rear articulation through a stretched configuration is the build goal, COR-4805302 is correct. If a significant improvement over short arm geometry without fabrication requirements is the goal, COR-4805017 is correct.
What is the difference between this and COR-4807003 (LJ rear bolt-on long arm)?
Platform coverage. COR-4807003 is LJ Unlimited only (2004–2006). COR-4805017 covers both the TJ (1997–2006) and the LJ Unlimited (2004–2006). Both are bolt-on, no-weld rear long arm kits with the same joint and axle truss specifications. If your vehicle is a 1997–2003 TJ (2-door), COR-4807003 does not apply — COR-4805017 is the correct kit.
Why does the axle truss need to be installed before the control arms?
The rear axle truss reinforces the axle tube at the upper and lower control arm mount locations. Long arm geometry applies higher loads to these mount points than short arm geometry. Without the truss, the axle tube can deform over time at the mount points under sustained trail loads. The truss must be installed before control arms are connected so the tube is reinforced before load is applied.
Does this require a CV-style driveshaft?
No — unlike the weld-on long arm kits in the Clayton lineup, this standard-length bolt-on rear long arm does not require a CV-style front driveshaft conversion. Verify rear driveshaft U-joint operating angles after installation as a standard post-install check, but a CV conversion is not required for this kit.
What is the warranty on the control arms?
Clayton Off Road provides a lifetime warranty on all control arms in this kit — both upper and lower. Confirm full terms at claytonoffroad.com/pages/warranty-policy.
The Obsidian Take
This kit is for the 1997–2006 TJ or 2004–2006 LJ Unlimited owner running 4" to 8" of rear lift who wants to replace the short arm rear geometry with long arm geometry — better ride quality, more articulation, less bushing wear — without requiring a certified welder, a custom exhaust, or a CV driveshaft conversion. The Currie Johnny Joints, GIIRO bushings, and included 4-link axle truss bring the Pro Series joint specification to a bolt-on installation format.
The comparison to COR-4805302 is the key buyer decision. COR-4805302 delivers more rear articulation through a stretched wheelbase at the cost of welding, custom exhaust, body modifications, and a custom rear driveshaft. COR-4805017 delivers meaningful long arm rear geometry improvement without any of those requirements. For a trail-capable TJ or LJ that still needs to function without a dedicated fabrication shop build, COR-4805017 is the rear long arm upgrade that fits that profile.
It is not for the JK or JL. It is not for lifts below 4". And it is not the correct purchase if a stretch build is planned — once the standard-length brackets are installed, converting to a stretch configuration requires different bracket positions and a different kit.
Manufacturer Data Disclaimer
Product specifications and fitment data are sourced from Clayton Off Road product documentation and authorized product information. Actual product dimensions, fitment details, and geometry specifications may vary by specific vehicle configuration, lift height, and manufacturer updates. Confirm all build requirements with Clayton or OFAS before ordering.
Non-Returnable Notice
Suspension components are non-returnable once installed. Confirm vehicle identity (1997–2006 TJ or 2004–2006 LJ Unlimited — not JK or JL), lift height (4"–8"), and that a standard-length (no stretch) rear long arm upgrade is the correct build choice before ordering. Text (469) 407-7538 with any fitment or build questions before your order is placed.