M1 Monotube Rear Shocks for Silverado 1500 & Sierra 1500 (1999-2007)
- Fits 1999-2007 Chevrolet and GMC half-ton applications - Silverado 1500, Sierra 1500, HD and Classic variants included
- Kit contents: 1x M1 Monotube shock pair - sold in pairs for the rear axle
- 46mm monotube design with digressive valving and an 18mm case-hardened, chromed rod
- 2-inch extruded tube, zinc plated, with vulcanized natural rubber bushings
- Install time: 1-2 hours. Shipping weight: 13.01 lb
- Warranty: 3 Year Limited Warranty
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Sold in pairs. Fitment on this page is based on the manufacturer’s application data.
About this kit
M1 Monotube Rear Shocks, fitment-checked
Rough Country 770738_M is a pair of M1 Monotube rear shocks covering 1999-2007 Chevrolet and GMC half-ton trucks, including Silverado 1500, Sierra 1500, the HD variants, and the 2007 Classic bodies. The monotube body runs a 46mm digressive piston with self-adjusting deflective-disc damping and an 18mm hardened, chromed rod. Sold in pairs, so one order handles both rear corners.
These M1 Monotube rear shocks fit 1999-2007 Silverado 1500 and Sierra 1500 applications in RWD, AWD, and 4WD, along with Silverado 1500 HD, Sierra 1500 HD, the C1500 and K1500 years shown, and the 2007 Classic models. The 2-inch seamless extruded tube houses a 46mm digressive piston that changes rate as the surface changes, and the zinc-plated body plus vulcanized natural rubber bushings handle road grime. The kit is one M1 monotube shock pair; check the fitment section for your submodel before ordering.
What’s in the box
Kit contents
- 1× M1 MONOTUBE SHOCK PAIR 770738P
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 770738_M kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 770738_M |
| UPC / GTIN | 00840269907258 |
| Shock package | M1 series |
| Shipping weight | 13.01 lb |
| Warranty | 3 Year Limited Warranty |
| Country of origin | CN |
| Category | Suspension & Lift Kits › Shocks & Struts |
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