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Home / Suspension & Lift Kits / Shocks & Struts / Rough Country 770790_L
Rough CountryPart 770790_L · UPC 00840269908378

M1 Monotube Rear Shocks for Colorado & Canyon 4WD (2004-2012)

$179.95MAP price
In stock — 219 available
Shipping weight: 13.26 lb.
  • Fits 2004-2012 Chevrolet Colorado and GMC Canyon 4WD — check your trim in the fitment list
  • Ships as one M1 monotube shock pair for the rear axle
  • 46mm monotube body with digressive piston and 18mm case-hardened, chromed rod
  • Zinc-plated finish and vulcanized natural rubber bushings
  • Listed install time: 1-2 hours
  • 3 Year Limited Warranty; shipping weight: 13.26 lb

The Trail Fortress check

Will it fit your truck?

✓ Fits

2004–2012 GMC Canyon · 4WD
SLSLESLTWTZ71 FleetZ71 SLZ71 SLEZ85 SLZ85 SLE
2004–2012 Chevrolet Colorado · 4WD
BaseLSLTSportSport LSWTZ71Z71 LSZ85Z85 LS

About this kit

M1 Monotube Rear Shocks, fitment-checked

A pair of M1 monotube rear shocks for 2004-2012 Chevrolet Colorado and GMC Canyon 4WD trucks (Rough Country 770790_L). The M1 uses a 46mm monotube body with a digressive piston and an 18mm chromed rod, and ships as one shock pair. Rough Country lists a rear install at 1-2 hours.

These M1 monotube rear shocks fit 2004-2012 Chevrolet Colorado and GMC Canyon 4WD trucks, covering Base, LS, LT, Sport, WT, Z71, and Z85 trims on the Chevrolet side and SL, SLE, SLT, WT, Z71, and Z85 trims on the GMC side. Construction is a 2-inch seamless extruded tube with a 46mm digressive piston, self-adjusting deflective-disc valving that separates rebound and compression, and vulcanized natural rubber bushings. The rod is 18mm, centerless-ground and case-hardened, with a zinc-plated body for corrosion resistance. Rear installation is listed at 1-2 hours. Covered by a 3 Year Limited Warranty.

What’s in the box

Kit contents

  • 1× M1 MONOTUBE SHOCK PAIR 770790P

Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 770790_L kit fits the vehicles shown in the fitment section above.

Specifications

Specs

BrandRough Country
Part number770790_L
UPC / GTIN00840269908378
Shock packageM1 series
Shipping weight13.26 lb
Warranty3 Year Limited Warranty
Country of originCN
CategorySuspension & Lift Kits › Shocks & Struts

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.