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Home / Suspension & Lift Kits / Lift Kits / Rough Country 11400
Rough CountryPart 11400 · UPC 00843030105808

3.5-Inch Lift Kit with Forged Upper Control Arms for Tahoe and Yukon

$629.95MAP price
In stock — 138 available
Shipping weight: 25.5 lb.
  • 3.5 inches of lift from forged aluminum upper control arms with pre-installed POM ball joints
  • Fits 2021–2026 Tahoe, Suburban, Yukon, and Yukon XL 4WD
  • Wheels must be 20in or larger; minor trimming required
  • Not for AT4, Premier, High Country, Magnetic Ride Control, or Adaptive Air Ride models
  • Remove the front differential mass damper if fitted — downloadable install guide available

The Trail Fortress check

Will it fit your truck?

✓ Fits

2021–2026 Chevrolet Tahoe · 4WD
CommercialHigh CountryLSLTPPVPremierRSTSSVZ71
2021–2026 Chevrolet Suburban · 4WD
CommercialHigh CountryLSLTPremierRSTZ71
2021–2026 GMC Yukon · 4WD
DenaliElevationSLESLT
2021–2026 GMC Yukon XL · 4WD
DenaliElevationSLESLT

✕ Does not fit

  • AT4 Premier or High Country models
  • Models with Adaptive Air Ride suspension found standard on Denali Ultimate models (optional upgrade on Denali)
  • Models equipped with Magnetic Ride Control (optional upgrade on RST and Z71 models)

Minor trimming is required. 20in or larger wheels are required. If vehicle is equipped with a mass damper on the front differential the damper must be removed. Fitment on this page is based on the manufacturer’s application data.

About this kit

3.5-Inch Lift Kit with Forged Upper Control Arms, fitment-checked

Rough Country 11400 delivers 3.5 inches of lift on 2021–2026 Tahoe, Suburban, Yukon and Yukon XL 4WD using forged aluminum upper control arms with POM ball joints already pressed in. Minor trimming is part of the install, wheels must be 20in or larger, and any mass damper on the front differential has to come off. Magnetic Ride Control and Adaptive Air Ride trucks are excluded.

This 3.5-inch lift kit for the 2021–2026 Chevrolet Tahoe and Suburban, GMC Yukon and Yukon XL in 4WD is centered on forged aluminum upper control arms cut with laser precision and shipped with the ball joints already installed. The POM joints give the arm a wider range of motion and cut down the bench work. Plan on minor trimming during installation, 20in or larger wheels, and removal of the front differential mass damper if your truck has one. AT4, Premier, High Country, and any vehicle with Magnetic Ride Control or Adaptive Air Ride are excluded. A downloadable installation guide is available.

What’s in the box

Kit contents

  • 1× 11400 Kit Box 11400BOX1
  • 1× Forged Upper Control Arms 29501

Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 11400 kit fits the vehicles shown in the fitment section above.

Specifications

Specs

BrandRough Country
Part number11400
UPC / GTIN00843030105808
Lift height3.5 in
Shipping weight25.5 lb
Country of originCN
CategorySuspension & Lift Kits › Lift Kits
Installation guideDownloadable PDF

Why buy here

The fitment-first store

Manufacturer-listed exclusions shown. We publish what a part does not fit — before you buy, not after the return.
Sourced from the application data. Fitment on this page comes from the manufacturer’s application catalog, not a copied listing.
Real install docs. The actual step-by-step guide, linked right on the page.