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Home / Suspension & Lift Kits / Lift Kits / Rough Country 110840
Rough CountryPart 110840 · UPC 00840269973864

5-Inch Lift Kit with M1 Shocks for 2020–2026 Silverado/Sierra HD

$1,839.95MAP price
In stock — 21 available
Shipping weight: 292 lb.
  • Fits 2020–2026 Silverado 2500 HD/3500 HD and Sierra 2500 HD/3500 HD — rear overload springs required
  • Not for dually, AT4X, or ZR2 models; factory wheels will not clear
  • Two pairs of M1 monotube shocks, a laser-cut crossmember, and replacement steering knuckles in the box
  • Gas engines may need exhaust modification for driveshaft clearance
  • Downloadable installation guide available — Shipping weight: 292.0 lb

The Trail Fortress check

Will it fit your truck?

✓ Fits

2020–2026 GMC Sierra 2500 HD · 4WD/RWD
AT4BaseDenaliDenali UltimateProSLESLT
2020–2026 GMC Sierra 3500 HD · 4WD/RWD
AT4BaseDenaliDenali UltimateProSLESLT
2020–2026 Chevrolet Silverado 2500 HD · 4WD/RWD
CustomHigh CountryLTLTZWT
2020–2026 Chevrolet Silverado 3500 HD · 4WD/RWD
High CountryLTLTZWT

✕ Does not fit

  • Dually models
  • AT4X models
  • ZR2 models

ONLY fits models equipped with rear overload springs. Does NOT work with factory wheels. Gas models may require modification to the exhaust for driveshaft clearance. Fitment on this page is based on the manufacturer’s application data.

About this kit

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

Rough Country 110840 is a 5-inch non-torsion-drop lift kit for compatible 2020–2026 Silverado 2500 HD/3500 HD and Sierra 2500 HD/3500 HD trucks, built around a laser-cut crossmember, new driver and passenger knuckles, and two pairs of M1 monotube shocks. It fits only trucks with rear overload springs, and it will not work with dually, AT4X, or ZR2 models or with factory wheels.

This 5-inch lift kit for the 2020–2026 Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD uses a non-torsion-drop design, so the front end gains height through a bolt-in crossmember and replacement knuckles rather than by cranking down the torsion bars. Track width and axle geometry stay where the factory put them, and no differential drilling is called for. Gas trucks may need exhaust clearance work for the driveshaft. Confirm your truck has rear overload springs and aftermarket wheels before ordering, then pull the downloadable Rough Country installation guide to plan the job.

What’s in the box

Kit contents

  • 1× Crossmember Box 10130BOX3
  • 1× Kit Box 10230BOX1
  • 1× 5" NTD Bracket Box 10230997
  • 1× 253x Kit Box 1253BOX6
  • 1× M1 MONOTUBE SHOCK PAIR 770744P
  • 1× M1 MONOTUBE SHOCK PAIR 770776P
  • 1× Dr Knuckle 10130BOX1
  • 1× Pass Knuckle 10130BOX2
  • 1× 5in Kit Rear Box 110830991

Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 110840 kit fits the vehicles shown in the fitment section above.

Specifications

Specs

BrandRough Country
Part number110840
UPC / GTIN00840269973864
Lift height5 in
Shock packageM1 series
Shipping weight292 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.