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Home / Suspension & Lift Kits / Shocks & Struts / Rough Country 770739_A
Rough CountryPart 770739_A · UPC 00840269907272

M1 Monotube Rear Shocks for Silverado & Sierra 1500 (1999-2007)

$179.95MAP price
In stock — 383 available
Shipping weight: 15 lb.
  • Fits listed 1999-2007 Chevrolet Silverado 1500 / GMC Sierra 1500 models, including 1500 HD, Classic, C1500, and K1500 applications in RWD, 4WD, and AWD
  • Ships as 1x M1 monotube shock pair — rear application
  • 46mm monotube design with digressive valving and a 2-inch seamless extruded tube; 18mm hardened, chromed rod
  • Zinc-plated body and vulcanized natural rubber bushings
  • Rough Country lists install time at 1-2 hours
  • 3 Year Limited Warranty. Shipping weight: 15 lb

The Trail Fortress check

Will it fit your truck?

✓ Fits

1999–2006 GMC Sierra 1500 · 4WD/AWD/RWD
BaseC3DenaliHTHybridSLSLESLTWT
1999–2006 Chevrolet Silverado 1500 · 4WD/AWD/RWD
BaseHybridLSLTSSWTZ71 Off-Road
2001–2006 GMC Sierra 1500 HD · 4WD/AWD/RWD
SLESLT
2001–2006 Chevrolet Silverado 1500 HD · 4WD/AWD/RWD
BaseLSLT

+ 6 more applications

About this kit

M1 Monotube Rear Shocks, fitment-checked

Rough Country 770739_A is a pair of M1 monotube rear shocks for 1999-2007 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks, plus the C1500, K1500, 1500 HD, and Classic applications listed in the fitment section. The kit ships as one M1 monotube shock pair. Carries a 3 Year Limited Warranty.

These M1 monotube rear shocks for the 1999-2007 Silverado 1500 and Sierra 1500 use a 46mm monotube body built from a 2-inch seamless extruded tube, with a 46mm digressive piston that changes damping response as the surface underneath the truck changes. The 18mm rod is centerless-ground, case-hardened, chromed and polished, and the body is zinc plated against road salt and grit. Vulcanized natural rubber bushings handle the mounting ends. Coverage spans RWD, 4WD, and AWD trims from WT through Denali and SS, so check your year and drivetrain in the fitment table. Rough Country lists installation at 1-2 hours.

What’s in the box

Kit contents

  • 1× M1 MONOTUBE SHOCK PAIR 770739P

Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 770739_A kit fits the vehicles shown in the fitment section above.

Specifications

Specs

BrandRough Country
Part number770739_A
UPC / GTIN00840269907272
Shock packageM1 series
Shipping weight15 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.