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Home / Suspension & Lift Kits / Lift Kits / Rough Country 27940
Rough CountryPart 27940 · UPC 00840269917219

6-Inch Lift Kit with M1 Shocks for Avalanche, Suburban, Yukon XL

$1,269.95MAP price
In stock — 11 available
Shipping weight: 227 lb.
  • Fits 2002-2006 Avalanche 1500, 2000-2006 Suburban 1500, and 2000-2006 Yukon XL 1500 — see the full fitment list
  • Does not fit models with the auto ride / auto-leveling feature
  • Wheels must be 17 inches or larger
  • Kit contents include an M1 Monotube shock pair, driver and passenger knuckles, crossmember kit, and rear lift components
  • Frame bracket modification required — downloadable installation guide available

The Trail Fortress check

Will it fit your truck?

✓ Fits

2000–2006 Chevrolet Suburban 1500 · 4WD/AWD/RWD
BaseLSLTLTZZ71
2002–2006 Chevrolet Avalanche 1500 · 4WD/AWD/RWD
BaseLSLTNorth FaceOn Road EditionWBHZ66Z71
2000–2006 GMC Yukon XL 1500 · 4WD/AWD/RWD
DenaliSLSLESLT

✕ Does not fit

  • Models fit auto ride/auto-leveling feature For ease of installation a torsion bar removal tool is recommended 1067

Frame bracket modification required. 17" or larger wheels are required. Fitment on this page is based on the manufacturer’s application data.

About this kit

6-Inch Lift Kit with M1 Shocks, fitment-checked

Rough Country 27940 is a 6-inch lift kit for the 2002-2006 Chevrolet Avalanche 1500, 2000-2006 Chevrolet Suburban 1500, and 2000-2006 GMC Yukon XL 1500. The kit box carries an M1 Monotube shock pair, driver and passenger knuckles, a crossmember kit, and rear lift components. Frame bracket modification is required, wheels must measure 17 inches or larger, and models with the auto ride / auto-leveling setup are not covered.

This 6-inch lift kit fits the 2002-2006 Chevrolet Avalanche 1500, 2000-2006 Chevrolet Suburban 1500, and 2000-2006 GMC Yukon XL 1500 in the drivetrain and trim combinations shown in the fitment list, from SL and LS through Denali and LTZ. Torsion bars stay in their factory position. Plan on modifying the frame brackets during installation, and confirm your wheels are 17 inches or larger before ordering; a torsion bar removal tool (1067) makes the job easier. Vehicles equipped with auto ride or auto-leveling are excluded. Shipping weight: 227.0 lb. A downloadable Rough Country installation guide is available.

What’s in the box

Kit contents

  • 1× 6" NTD Bracket Box 12729910
  • 1× NTD Crossmember Kit Box 1272BOX7
  • 1× Kit Box 1279BOX4
  • 1× Dr & Ps Knuc 1285
  • 1× M1 MONOTUBE SHOCK PAIR 770760P
  • 1× Sub Yuk 6in RR 9228
  • 1× Kit Box 12729911

Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 27940 kit fits the vehicles shown in the fitment section above.

Specifications

Specs

BrandRough Country
Part number27940
UPC / GTIN00840269917219
Lift height6 in
Shock packageM1 series
Shipping weight227 lb
Country of originUS
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.