Clayton Off Road Pro Series Complete Front 3-Link Long Arm Upgrade Kit | Weld-On Upper Mount Brackets | Double-Adjustable Lower Arms | LH/RH Upper Arm | 1997–2006 Jeep Wrangler TJ / 2004–2006 LJ Unlimited | SKU: COR-4805013
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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). It is the complete front-half Pro Series 3-link long arm upgrade kit for TJ and LJ platforms. If you already have a front long arm system installed and only need the 3-link upper arm conversion, order COR-4805015 instead.
LJ-specific equivalent: COR-4807013 is the LJ Unlimited-designated version of this kit. If your vehicle is a 2004–2006 LJ Unlimited, either COR-4805013 or COR-4807013 applies. If your vehicle is a 1997–2003 TJ (2-door), COR-4805013 is the correct SKU.
| Year Range | Make | Model | Configuration | Notes |
|---|---|---|---|---|
| 1997–2006 | Jeep | Wrangler TJ | 2-Door | Welding required; custom exhaust required; CV driveshaft + SYE required |
| 2004–2006 | Jeep | Wrangler LJ Unlimited | 4-Door | Welding required; custom exhaust required; CV driveshaft + SYE required |
Before ordering — confirm all five:
- Vehicle is a 1997–2006 TJ or 2004–2006 LJ Unlimited — not a JK or JL
- This is a fresh front long arm build — not an existing long arm upgrade (see COR-4805015 for add-on conversion)
- A certified welder is available for the weld-on 3-link upper mount brackets
- A front CV-style driveshaft with SYE kit is sourced and ready
- A custom exhaust can be fabricated or sourced
Verify fitment by text: (469) 407-7538
Does NOT Fit
| Exclusion | Reason | Correct SKU |
|---|---|---|
| TJ/LJ builds already running a long arm system who only need the 3-link upper arm conversion | This kit is the complete front-half system — ordering it when you already have a long arm system with lower arms installed means paying for hardware you already own | COR-4805015 (conversion add-on — upper arm + weld-on mounts only) |
| Jeep Wrangler JK (2007–2018) | Different front suspension architecture | COR-4808122 (JK front long arm); see JK-specific 3-link for upper arm conversion |
| Jeep Wrangler JL (2018–2026) | Different front suspension architecture | Not applicable |
| Jeep Gladiator JT | Different front suspension architecture | Not applicable |
| Buyers without a certified welder | Weld-on 3-link upper mount brackets — load-bearing suspension brackets cannot be run on tack welds | Not applicable |
| Buyers without a front CV driveshaft and SYE kit sourced | Required before driving after installation | Source separately |
| Buyers without a front axle truss sourced | D30 front truss must be installed before welding axle-side upper mount — aftermarket axles require compatible truss | Source separately |
Verify fitment by text: (469) 407-7538
Component Specifications
| Specification | Detail |
|---|---|
| Part number | COR-4805013 |
| Application | Complete front 3-link long arm upgrade kit — TJ (1997–2006) and LJ Unlimited (2004–2006) |
| LJ-specific equivalent | COR-4807013 |
| Kit type | Complete front-half system — includes 3-link upper mount brackets, double-adjustable lower arms, upper 3-link arm, and hardware |
| 3-link upper mount brackets | Weld-on |
| Front frame brackets | Not confirmed in source — COR-4805013 kit contents list does not include front frame brackets (vs. COR-4807013 which included them). Verify with Clayton before publishing. |
| Lower control arms | Double-adjustable — both ends independently adjustable for caster and arm length tuning |
| Upper control arm | Single 3-link arm — LH/RH threads for in-vehicle length adjustment without arm removal |
| 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 |
| Installation | Welding required — 3-link upper mount brackets are weld-on |
| Exhaust | Custom exhaust required |
| Driveshaft | Front CV-style driveshaft + SYE kit required |
| Front axle truss | Clayton D30 front truss highly recommended; aftermarket axles require compatible truss |
| Warranty | Lifetime — all control arms |
| vs. COR-4805015 | COR-4805015 is the conversion add-on (upper arm + mounts only). COR-4805013 is the complete front-half kit (upper mount brackets + double-adjustable lower arms + upper arm). |
| Unit weight | 13 lb |
| Shipping dimensions | 9" × 7" × 7" |
What Is and Is NOT Included
Included:
| Component |
|---|
| Weld-on 3-link upper arm mount brackets |
| Double-adjustable lower control arms (pair) with Currie Johnny Joint frame ends and GIIRO axle-end bushings |
| Single upper 3-link arm with Currie Johnny Joint frame end and GIIRO axle-end bushing (LH/RH threads) |
| Hardware per Clayton specification |
Not Confirmed (flag before publishing):
| Item | Notes |
|---|---|
| Front frame brackets | COR-4807013 (LJ version) included front frame brackets. COR-4805013 kit contents do not list them. Confirm with Clayton whether TJ/LJ lower arms use factory frame mount locations (no additional frame brackets needed) or whether brackets are omitted from the source listing. |
Not Included:
| Item | Notes |
|---|---|
| Front CV-style driveshaft and SYE kit | Required — source separately |
| Custom exhaust | Required — fabricate or source separately |
| Clayton D30 front truss | Highly recommended — install before welding axle-side upper arm mount. Sold separately. |
| Aftermarket axle truss | Required for non-Dana 30 front axles — source separately |
| Professional welding labor | Certified welder required — not included |
Critical Compatibility
| Condition | Interaction | Action Required |
|---|---|---|
| COR-4805013 vs. COR-4805015 — complete vs. add-on | COR-4805013 is the complete front-half kit including double-adjustable lower arms and the 3-link upper mount brackets. COR-4805015 adds only the upper arm and mounts to an existing long arm system. If lower arms are already installed, ordering COR-4805013 duplicates hardware. | Confirm whether lower arms are already installed. If yes, order COR-4805015. If starting fresh, order COR-4805013. |
| Front axle truss — install before upper mount weld | The weld-on 3-link upper arm mount welds to the front axle tube. D30 front truss must be in place before welding to reinforce the axle tube at the load point. | Install D30 front truss (or axle-specific truss for aftermarket axles) before welding the upper arm axle mount. |
| Weld-on upper mount brackets — permanent | Full-penetration welds required on all contact surfaces. No tack welds on load-bearing suspension brackets. | Certified welder with off-road chassis experience required. |
| Custom exhaust — mandatory | 3-link front geometry conflicts with factory TJ/LJ front exhaust routing. Custom exhaust required before driving. | Plan custom exhaust fabrication concurrently. |
| Front CV driveshaft + SYE kit | 3-link front long arm geometry changes front driveshaft operating angle beyond standard U-joint range. | Source and install simultaneously. |
| Double-adjustable lower arm geometry setting | Both ends independently adjustable. Set caster and arm length at ride height per Clayton's specifications. | Set all geometry parameters at ride height after full installation. |
| Frame brackets — confirmation required | Source documentation for COR-4805013 does not list front frame brackets in the kit contents, unlike COR-4807013. If the TJ/LJ lower arms bolt to the factory frame mount locations without additional brackets, no action is needed. If brackets are required and not included, they must be sourced separately. | Confirm with Clayton whether this kit includes or requires separate front frame brackets before installation. Text (469) 407-7538. |
Installation Notes
Skill level: Expert — professional fabrication required. Installation sequence mirrors COR-4807013 (LJ version) and COR-4805015 (conversion add-on) with the additional lower arm installation step.
Phase 1 — Preparation:
- Confirm vehicle identity: 1997–2006 TJ (2-door) or 2004–2006 LJ Unlimited.
- Confirm whether front frame brackets are included or required — text (469) 407-7538.
- Install Clayton D30 front truss (or axle-specific truss) on front axle tube before any welding begins.
- Plan and initiate custom exhaust fabrication.
- Confirm front CV driveshaft with SYE kit is sourced.
Phase 2 — Weld-on bracket installation:
- Position the 3-link upper arm mount brackets per Clayton's installation instructions — verify position and angle before welding.
- Full-penetration welds on all contact surfaces. No tack welds.
- Apply weld-through primer and chassis paint to all bare metal after welding.
Phase 3 — Control arm installation and geometry:
- Install double-adjustable lower control arms at initial length per Clayton's geometry specifications.
- Install upper 3-link arm using LH/RH thread adjustment to set initial length.
- Set caster and pinion angle at ride height.
- Torque all hardware at ride height.
Phase 4 — Exhaust, driveshaft, and alignment:
- Complete custom exhaust.
- Install front CV driveshaft with SYE kit.
- Verify front driveshaft operating angles.
- Complete full front alignment — caster and toe.
Required tools and services:
| Item | Required |
|---|---|
| Vehicle lift rated for TJ/LJ | Yes |
| Certified welder | Yes |
| Weld-through primer and chassis paint | Yes |
| Exhaust fabrication equipment or shop | Yes |
| Torque wrench | Yes |
| Geometry setting equipment | Yes |
| Alignment equipment | Yes |
Common Questions
What is the difference between this and COR-4807013 (LJ version)?
Platform coverage and a potential kit contents difference. COR-4807013 is the LJ Unlimited-designated version and includes front frame brackets in its confirmed kit contents. COR-4805013 covers both TJ (1997–2003) and LJ Unlimited (2004–2006) but the kit contents listed in source documentation do not specifically confirm front frame brackets. If your vehicle is a 1997–2003 TJ, COR-4805013 is the only option. If your vehicle is a 2004–2006 LJ Unlimited, either SKU may apply — text (469) 407-7538 to confirm the correct SKU for your specific build.
What is the difference between this and COR-4805015?
Scope. COR-4805015 is the conversion add-on — it adds only the upper 3-link arm and weld-on mounts to an existing long arm system. COR-4805013 is the complete front-half kit — it includes the double-adjustable lower arms and the weld-on 3-link upper mount brackets for a fresh build. If lower arms are already installed, order COR-4805015. If starting from scratch, order COR-4805013.
Why is a front axle truss required before welding?
The 3-link upper arm mount welds to the front axle tube at the upper arm pivot point. Long arm upper arm loads — particularly fore-aft at suspension extremes — are applied to this single point with more leverage than short arm geometry. Without a truss reinforcing the axle tube at this location, those loads can deform the tube wall. The D30 front truss must be in place before welding so the weld zone encompasses both the truss and the axle tube.
What is the LH/RH thread on the upper arm for?
LH/RH threads allow the overall arm length to be changed by rotating the arm body — one end loosens as the other tightens. No jam nuts to loosen, no arm to remove. For a build where geometry is being refined through use, this saves significant adjustment time on and off the trail.
What is the warranty?
Clayton Off Road provides a lifetime warranty on all control arms — upper and lower. Confirm full terms at claytonoffroad.com/pages/warranty-policy.
The Obsidian Take
This kit is for the TJ or LJ Unlimited owner who is building a complete front 3-link long arm suspension from the ground up — not converting an existing long arm setup. The relationship to COR-4807013 (LJ version) is the same as every other TJ/LJ kit pairing in this session: COR-4805013 adds TJ coverage; COR-4807013 is LJ-only. The hardware and fabrication requirements are identical. If the vehicle is a 2004–2006 LJ Unlimited, either SKU applies and both should be confirmed with OFAS before ordering. If the vehicle is a 1997–2003 TJ, COR-4805013 is the only path.
The potential frame bracket difference from COR-4807013 must be resolved before publishing — source documentation for COR-4805013 does not list front frame brackets while COR-4807013 does. This is the one open question that affects what the buyer receives, and it should be confirmed with Clayton before the page goes live.
Three fabrication gates before this kit can be driven: certified welder for the upper mount brackets, custom exhaust, and front CV driveshaft with SYE kit. D30 front truss must be installed before any welding begins. None of these are optional and none are fast.
It is not the conversion add-on — that is COR-4805015. It is not for the JK or JL. And it is not a purchase that should be made before confirming whether the kit includes front frame brackets for the lower arms.
Manufacturer Data Disclaimer
Product specifications and fitment data are sourced from Clayton Off Road product documentation and authorized product information. Actual product dimensions, kit contents, fitment details, and geometry requirements may vary by specific vehicle configuration and manufacturer updates. Confirm all kit contents and 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), that this is a fresh build (not an existing long arm conversion — see COR-4805015), that kit contents are confirmed with Clayton (specifically whether front frame brackets are included), that a certified welder is available, and that a front CV driveshaft with SYE kit and a front axle truss are sourced before ordering. Text (469) 407-7538 with any fitment or build questions before your order is placed.