Clayton Off Road GIIRO Joint Adjuster 12mm Thru-Bolt for 1997-2006 Jeep Wrangler TJ and LJ Rear Track Bar

Is This for You?

• You have a Clayton adjustable rear track bar (COR-4500210) on your 1997–2006 TJ or LJ and need to replace the axle-end GIIRO joint adjuster — this is the OEM replacement GIIRO joint adjuster for the axle end of the COR-4500210 Clayton adjustable rear track bar. Long shank forging with a dual-durometer GIIRO bushing, 12mm thru-hole, 1" x 14 shank, 1.6" outside bushing diameter.
• Your current axle-end GIIRO bushing is worn, damaged, or you want to rebuild the track bar with a fresh joint — the GIIRO dual-durometer bushing is the maintenance-free axle-end joint in the COR-4500210 rear track bar. This replacement adjuster restores the original NVH isolation and articulation performance of the track bar without replacing the entire bar.
• You need the exact spec replacement — 1" x 14 shank, 12mm thru-hole, 1.6" outside bushing diameter, long shank forging — verify these specs match your existing joint before ordering. This adjuster is specific to the COR-4500210 TJ/LJ rear track bar axle-end application.

The Result

• Replacement GIIRO joint adjuster for the axle end of the COR-4500210 Clayton adjustable rear track bar — long shank forging, dual-durometer GIIRO bushing, 12mm thru-hole.
• Specs: 1" x 14 shank, 12mm thru-hole, 1.6" outside bushing diameter. Dual-durometer design — NVH-isolating, maintenance-free, full articulation.
• Direct replacement for COR-4500210 axle-end joint. Fits 1997–2006 Jeep Wrangler TJ and LJ Unlimited rear track bar application.

The COR-4500002 is Clayton Off Road's replacement GIIRO joint adjuster for the axle end of the COR-4500210 adjustable rear track bar, designed for the 1997–2006 Jeep Wrangler TJ and LJ Unlimited. The GIIRO joint is a long shank forging with a dual-durometer bushing — the dual-durometer design provides NVH isolation for on-road comfort while allowing full articulation for off-road use. Specifications: 1" x 14 shank, 12mm thru-hole, 1.6" outside bushing diameter. This adjuster is the direct replacement for the axle-end joint in the COR-4500210 rear track bar. Verify specs match your existing joint before ordering.

Audit Table

Verified Fitment (OFAS Standard)

✅ Fits 1997–2006 Jeep Wrangler TJ (2-Door) — All Trims — Axle-End GIIRO Joint Adjuster for COR-4500210 Rear Track Bar
✅ Fits 2004–2006 Jeep Wrangler LJ Unlimited (4-Door) — All Trims — Axle-End GIIRO Joint Adjuster for COR-4500210 Rear Track Bar
❌ This is a service/replacement part for the COR-4500210 rear track bar only — verify specs match your existing joint before ordering
❌ Does NOT fit front track bar applications — front track bar axle-end joints use different specifications

Installation & Fabrication Notes

• Remove the existing axle-end GIIRO joint adjuster from the COR-4500210 rear track bar per Clayton's service instructions.
• Install the replacement GIIRO joint adjuster — verify the 1" x 14 shank threads fully engage and the 12mm thru-hole aligns with the axle mount bolt.
• Torque the axle mount bolt to specification at ride height.
• Verify rear axle centering after reinstallation.

Wheel & Tire Fitment

This is a replacement service part for the COR-4500210 rear track bar. Wheel and tire fitment is not affected by this joint replacement.

Engineering Question: Confirm you have the COR-4500210 Clayton adjustable rear track bar and that the axle-end joint specs match: 1" x 14 shank, 12mm thru-hole, 1.6" outside bushing diameter. This adjuster is specific to the COR-4500210 axle-end application — front track bar and other rear track bar applications use different joint specifications.