Fitment-checked off-road parts  ·  Manufacturer-listed exclusions shown before you buy
TRAILFORTRESSBuilt for the trail. Checked for your truck.Cart
Home / Suspension & Lift Kits / Lift Kits / Rough Country 11640
Rough CountryPart 11640 · UPC 00840269928505

7-Inch Lift Kit with M1 Shocks for 2016–2019 Silverado/Sierra 1500

$1,849.95MAP price
In stock — 68 available
Shipping weight: 235 lb.
  • M1 loaded struts and an M1 monotube shock pair set the 7-inch lift front and rear
  • Fits 2016–2019 Chevy Silverado 1500 and GMC Sierra 1500 4WD with stamped steel lower control arms
  • Not for Denali, Denali Ultimate, or eAssist (ECO Hybrid) trucks
  • Keeps factory track width and works with stock 20-inch wheels
  • Cutting and drilling required — downloadable installation guide available

The Trail Fortress check

Will it fit your truck?

✓ Fits

2016–2018 Chevrolet Silverado 1500 · 4WD
CustomHigh CountryLSLTLTZSSVWT
2016–2018 GMC Sierra 1500 · 4WD
BaseSLESLT
2019 Chevrolet Silverado 1500 LD · 4WD
CustomLTWT
2017–2018 GMC Sierra · 4WD
SLE

✕ Does not fit

  • Denali or Denali Ultimate models
  • Models with eAssist (ECO Hybrid) package

Requires cutting and drilling. ONLY fits models with stamped steel control arms. To ensure proper fit please confirm if the stock control arms are cast aluminum cast steel or stamped steel. To ensure adequate clearance when lowering the differential models equipped with a mass damper on the front differential must be removed. IMPORTANT! - Installation of larger tires will require Rough Country's Speedometer Calibrator SKU: 90009. Fitment on this page is based on the manufacturer’s application data.

About this kit

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

This is the M1 build of Rough Country's 7-inch stamped-steel-LCA lift for the 2016–2019 Chevy Silverado 1500 and GMC Sierra 1500 4WD: M1 loaded struts up front, an M1 monotube shock pair out back, plus forged upper control arms, skid plates, and rear lift blocks. Denali, Denali Ultimate, and eAssist trucks are excluded, and the install calls for cutting and drilling.

The 7-inch lift kit for 2016–2019 Chevy Silverado 1500 and GMC Sierra 1500 4WD trucks, built around M1 monotube damping at all four corners. Crossmembers, a control arm drop kit, front and lower skid plates, a rear block box, and forged upper control arms round out what ships. Track width stays at factory spec and stock 20-inch wheels bolt back on. Fitment hinges on stamped steel lower control arms, so confirm what your truck has; Denali, Denali Ultimate, and eAssist models are out. Cutting and drilling are required, and a downloadable installation guide is available.

What’s in the box

Kit contents

  • 1× Crossmembers 1290BOX16
  • 1× 2014+ Lower Skid Plate 1290BOX3
  • 1× 2014+ FR Skid Plate 1290BOX4
  • 1× Control Arm Drop Kit 298BOX1
  • 1× 7" RR Block Box 298BOX2
  • 1× M1 Loaded Strut Pair 502035
  • 1× M1 MONOTUBE SHOCK PAIR 770739P
  • 1× Forged Upper Control Arms 10025

Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 11640 kit fits the vehicles shown in the fitment section above.

Specifications

Specs

BrandRough Country
Part number11640
UPC / GTIN00840269928505
Lift height7 in
Shock packageM1 series
Shipping weight235 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.