The rear sway bar keeps the GMT800 flat through corners, but it only works through the two end links connecting it to the frame — and after 20+ years the factory links are worn, clunking over bumps and letting body roll creep back in. Our Camp REL2 replaces them with 0.75" OD cold-rolled steel, a poly bushing at the sway-bar end, and a welded Rock Jock Johnny Joint at the frame end — built to the exact length for your lift so the bar holds up under load.
The Yukon XL Denali handles long-haul work — heavy loads, big trips, plenty of highway miles. After a couple decades, the rear suspension is showing its age, and the fixed-length arms leave you no way to re-align the rear axle after a lift. You feel it as a clunk under throttle, harshness over expansion joints, and a back end that floats when it's loaded. Switching to Core 4x4 brings the rear back where it should be — with stronger, more durable construction built in.
Quick Specs
Tubing: 0.75" OD cold-rolled steel
Ends: Poly bushing (sway-bar end) + welded Rock Jock Johnny Joint (frame end)
Lift size: Built to your selected length (Stock–6", or Custom)
Tier guide — Cruise (entry, factory-power daily — lifted or not) → Camp (mid, this product) → Crawl (top, extreme off-road, heavy towing, or high-HP builds). Camp is the sweet spot — serious off-road capability without giving up street manners. Step up to Crawl if you're towing heavy or building serious power — Johnny Joints handle that load better than bushings.
Hardware included — Core 4x4 end links use a thru-bolt design that won't work with factory stud-and-nut hardware, so the install hardware — bolts, nuts, washers, and fender washers — always ships in the box. Replacement hardware is available as a standalone HWK SKU if you ever need more.
Pairing tip — Doing a lift? These end links are part of our 7-piece full rear suspension kit — step up to the 7-piece kit to do the entire rear suspension in one order.
Fitment: GMC Yukon XL Denali (2001-2006). Also fits Chevy Tahoe (00-06), Chevy Suburban 1500 (00-06), Chevy Avalanche 1500 (02-06), GMC Yukon 1500 (00-06), GMC Yukon XL 1500 (00-06), GMC Yukon Denali (01-06), Cadillac Escalade (02-06), Cadillac Escalade ESV (03-06), Cadillac Escalade EXT (02-06). 1500-series only — does NOT fit 2500-series HD trucks. Made in the USA. Lifetime warranty on construction.
Built With
Tubing: 0.75" OD cold-rolled steel · Ends: Poly bushing (sway-bar end) + welded Rock Jock Johnny Joint (frame end)
| Make | Model | Submodel | Years |
|---|---|---|---|
| GMC | Yukon XL Denali | 2001 - 2006 |
Construction & Materials
Tubing: 0.75" OD cold-rolled steel · Ends: Poly bushing (sway-bar end) + welded Rock Jock Johnny Joint (frame end)
| Brand | CORE 4X4 |
| Color | Black or Blue or Charcoal or Green or Light Green or Orange or Purple or Red or White or Yellow |
| Lift Size | Stock Height or Lifted 1" or Lifted 2" or Lifted 3" or Lifted 4" or Lifted 5" or Lifted 6" or Custom length or 1/2 sizes (put desired length in the Order Notes) |
| Series | Camp Series |
| Mounting Style | Bolt-On |
Use the vehicle selector on our website to shop by your year, make, and model. On product pages, use the kit builder to select your color, series, lift height, and any add-on options, then add to cart. If you need help, call or email our team.
Standard orders typically ship within 1–3 business days of ordering. Custom color orders take approximately 5–10 business days. Because everything is built in-house, we can turn orders quickly even for custom specifications.
You can reach our team through the contact form on our website, or browse to the Contact Us page. Our team is available to answer pre-sale and technical questions before and after your purchase.
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