Clayton Off Road 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-4805003
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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 rear long arm kit — for the Pro Series version with double-adjustable arms, see COR-4805017.
| 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
- Standard adjustable arms are appropriate for your build — for maximum geometry tunability with double-adjustable arms, see COR-4805017
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 | 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 wanting double-adjustable arms and maximum geometry tunability | This is the standard adjustable version — Pro Series double-adjustable is COR-4805017 | COR-4805017 |
| Buyers planning a wheelbase stretch build | The 5" stretch version uses different bracket positions — standard-length and stretch brackets are not interchangeable | COR-4805302 |
Verify fitment by text: (469) 407-7538
Component Specifications
| Specification | Detail |
|---|---|
| Part number | COR-4805003 |
| Application | Rear long arm upgrade kit — standard, rear-half system; TJ (1997–2006) and LJ Unlimited (2004–2006) |
| Lift range | 4"–8" |
| Wheelbase stretch | None — standard length |
| Frame brackets | Rear frame brackets — bolt-on to factory rear control arm 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 |
| Pro Series version | COR-4805017 — double-adjustable arms for more precise pinion angle and anti-squat tuning |
| 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 rear geometry changes suspension travel arc — verify rear shock length is appropriate for your lift height. 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 connecting the control arms. The truss reinforces the axle tube at the control arm mount locations where long arm loads are applied — without it, sustained long arm loads can deform the tube wall. | 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 configurations the adjustable arms allow pinion angle correction within acceptable driveshaft operating angles. | Check rear driveshaft angle after setting pinion angle. Correct if operating angles are outside acceptable range. |
| Standard vs. Pro Series arm adjustability | The standard arms in this kit are adjustable at one end per arm — correct for most lifted TJ/LJ builds at 4"–8". The Pro Series version (COR-4805017) provides double-adjustable arms where both ends are independently adjustable, allowing more precise simultaneous tuning of pinion angle and anti-squat without one adjustment affecting the other. | If precise independent geometry tuning is a priority, consider COR-4805017. For the majority of lifted TJ/LJ builds at 4"–8", the standard arms in this kit provide adequate geometry correction. |
| Rear alignment | Long arm rear conversion changes toe and thrust angle. A rear alignment check is mandatory after installation. | Schedule rear alignment immediately after installation. |
| Lift height minimum — 4" | Below 4" of rear lift, factory short arm geometry is within acceptable operating parameters. | Confirm rear lift height is 4" or greater before ordering. |
Installation Notes
Skill level: Intermediate to advanced. No welding required — bolt-on rear long arm replacement. A qualified shop with TJ/LJ rear suspension experience is recommended for correct geometry setting and mandatory rear alignment.
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 — longer arm geometry changes pinion angle, which may affect driveshaft 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-4805017 (Pro Series)?
Arm adjustability. COR-4805003 (this kit) uses standard adjustable arms — each arm is adjustable at one end, allowing geometry correction for your lift height. COR-4805017 uses double-adjustable arms — both ends of each arm are independently adjustable, allowing more precise simultaneous tuning of pinion angle, anti-squat, and arm length without one adjustment affecting the other. For most lifted TJ/LJ builds at 4"–8", the standard arms in this kit provide adequate geometry correction. For builders who want maximum geometry tunability and independent adjustment at both ends, COR-4805017 is the correct choice. Both kits include the same Johnny Joint and GIIRO bushing specification and the same 4-link axle truss.
What is the difference between this and COR-4805017 regarding installation?
The source documentation for COR-4805003 describes COR-4805017 as having "weld-on brackets" while COR-4805017's own audit table confirms "No Welding Required." Text (469) 407-7538 before ordering COR-4805017 if weld-on vs. bolt-on bracket installation is a decision factor for your build — OFAS will confirm the current installation requirement before your order ships.
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 fore-aft and lateral loads to these mount points than short arm geometry. Without the truss, the axle tube can deform over time at the mount locations. The truss must be installed first so the tube is reinforced before any long arm loads are applied.
Does this require exhaust modifications?
No — unlike the Pro Series 3-link and stretch kits in the Clayton lineup, this standard rear long arm kit does not require exhaust modifications. The bolt-on frame bracket positions do not conflict with the factory TJ/LJ rear exhaust.
Does this fit both the TJ and LJ?
Yes — both the TJ (1997–2006, 2-door) and LJ Unlimited (2004–2006, 4-door) are confirmed fitments for this kit.
What is the warranty?
Clayton Off Road provides a lifetime warranty on all control arms in this kit — 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 without requiring a welder, a custom exhaust, or a CV driveshaft. The Currie Johnny Joints, GIIRO bushings, and included 4-link axle truss bring the correct joint specification to a bolt-on installation format.
The comparison to COR-4805017 (Pro Series) is the buyer decision. COR-4805017 provides double-adjustable arms for more precise independent geometry tuning at a higher price point. COR-4805003 provides standard adjustable arms adequate for most 4"–8" TJ/LJ builds at a lower price point. The joint specification and axle truss are the same in both kits — the difference is how many adjustment points each arm provides and whether that additional tunability matters for the intended build.
It is not for the JK or JL. It is not for lifts below 4". It is not the correct purchase for a stretch build — that requires COR-4805302. And it is not a complete front and rear long arm solution on its own — pair with the appropriate front long arm kit (COR-4805002 or COR-4805013) for a full long arm conversion on a TJ or LJ.
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, arm adjustability specifications, and geometry settings 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 standard adjustable arms are appropriate for your build before ordering. Text (469) 407-7538 with any fitment or build questions before your order is placed.