Unmatched Control. Maximum Performance: Rough Country's M1R Monotube Shocks with External Reservoir deliver the perfect blend of control, comfort, and endurance. Designed to handle the harshest terrains and heaviest loads, the M1R ensures your ride performs at its peak, on or off the road. Built for Heat, Engineered for Pressure: Featuring an advanced 46mm monotube design and external reservoir, the M1R delivers faster heat dissipation and fade-free performance in any environment. An internal floating piston separates oil and gas for consistent damping, even during extreme use. Precision Performance and Comfort: With a 2-inch digressive piston and self-adjusting deflective-disc valving, the M1R adapts to changing terrains on the fly, giving you superior handling and ride quality. Whether cruising pavement or crawling trails, experience control without compromise. Unyielding Strength, Built to Last: From the 2-inch seamless extruded body to the 16mm case-hardened, chromed rod, every component is crafted for extreme durability. The galvanized zinc finish protects against corrosion, while natural rubber bushings minimize noise and vibration. Confidence You Can Count On: Backed by Rough Country's 3-year manufacturer's warranty, the M1R is built to go the distance, reliable, rugged, and ready for anything.
This Part Fits:
| Year |
Make |
Model |
Submodel |
Notes |
| 1979 |
GMC |
K3500 |
Base |
|
| 1980 |
GMC |
K3500 |
Base |
|
| 1981 |
GMC |
K3500 |
Base |
|
| 1982 |
GMC |
K3500 |
Base |
|
| 1983 |
GMC |
K3500 |
Base |
|
| 1984 |
GMC |
K3500 |
Base |
|
| 1985 |
GMC |
K3500 |
Base |
|
| 1986 |
GMC |
K3500 |
Base |
|
| 1979 |
GMC |
C3500 |
Base |
|
| 1980 |
GMC |
C3500 |
Base |
|
| 1981 |
GMC |
C3500 |
Base |
|
| 1982 |
GMC |
C3500 |
Base |
|
| 1983 |
GMC |
C3500 |
Base |
|
| 1984 |
GMC |
C3500 |
Base |
|
| 1985 |
GMC |
C3500 |
Base |
|
| 1986 |
GMC |
C3500 |
Base |
|
| 1981 |
Chevrolet |
C30 |
Custom |
|
| 1982 |
Chevrolet |
C30 |
Custom |
|
| 1983 |
Chevrolet |
C30 |
Custom |
|
| 1984 |
Chevrolet |
C30 |
Custom |
|
| 1985 |
Chevrolet |
C30 |
Custom |
|
| 1986 |
Chevrolet |
C30 |
Custom |
|
| 1981 |
Chevrolet |
K30 |
Custom |
|
| 1982 |
Chevrolet |
K30 |
Custom |
|
| 1983 |
Chevrolet |
K30 |
Custom |
|
| 1984 |
Chevrolet |
K30 |
Custom |
|
| 1985 |
Chevrolet |
K30 |
Custom |
|
| 1986 |
Chevrolet |
K30 |
Custom |
|
| 1979 |
GMC |
K3500 |
High Sierra |
|
| 1980 |
GMC |
K3500 |
High Sierra |
|
| 1981 |
GMC |
K3500 |
High Sierra |
|
| 1982 |
GMC |
K3500 |
High Sierra |
|
| 1983 |
GMC |
K3500 |
High Sierra |
|
| 1984 |
GMC |
K3500 |
High Sierra |
|
| 1985 |
GMC |
K3500 |
High Sierra |
|
| 1986 |
GMC |
K3500 |
High Sierra |
|
| 1979 |
GMC |
C3500 |
High Sierra |
|
| 1980 |
GMC |
C3500 |
High Sierra |
|
| 1981 |
GMC |
C3500 |
High Sierra |
|
| 1982 |
GMC |
C3500 |
High Sierra |
|
| 1983 |
GMC |
C3500 |
High Sierra |
|
| 1984 |
GMC |
C3500 |
High Sierra |
|
| 1985 |
GMC |
C3500 |
High Sierra |
|
| 1986 |
GMC |
C3500 |
High Sierra |
|
| 1977 |
Chevrolet |
K30 |
Scottsdale |
|
| 1978 |
Chevrolet |
K30 |
Scottsdale |
|
| 1979 |
Chevrolet |
K30 |
Scottsdale |
|
| 1980 |
Chevrolet |
K30 |
Scottsdale |
|
| 1981 |
Chevrolet |
K30 |
Scottsdale |
|
| 1982 |
Chevrolet |
K30 |
Scottsdale |
|
| 1983 |
Chevrolet |
K30 |
Scottsdale |
|
| 1984 |
Chevrolet |
K30 |
Scottsdale |
|
| 1985 |
Chevrolet |
K30 |
Scottsdale |
|
| 1986 |
Chevrolet |
K30 |
Scottsdale |
|
| 1977 |
Chevrolet |
C30 |
Scottsdale |
|
| 1978 |
Chevrolet |
C30 |
Scottsdale |
|
| 1979 |
Chevrolet |
C30 |
Scottsdale |
|
| 1980 |
Chevrolet |
C30 |
Scottsdale |
|
| 1981 |
Chevrolet |
C30 |
Scottsdale |
|
| 1982 |
Chevrolet |
C30 |
Scottsdale |
|
| 1983 |
Chevrolet |
C30 |
Scottsdale |
|
| 1984 |
Chevrolet |
C30 |
Scottsdale |
|
| 1985 |
Chevrolet |
C30 |
Scottsdale |
|
| 1986 |
Chevrolet |
C30 |
Scottsdale |
|
| 1979 |
GMC |
C3500 |
Sierra Classic |
|
| 1980 |
GMC |
C3500 |
Sierra Classic |
|
| 1981 |
GMC |
C3500 |
Sierra Classic |
|
| 1982 |
GMC |
C3500 |
Sierra Classic |
|
| 1983 |
GMC |
C3500 |
Sierra Classic |
|
| 1984 |
GMC |
C3500 |
Sierra Classic |
|
| 1985 |
GMC |
C3500 |
Sierra Classic |
|
| 1986 |
GMC |
C3500 |
Sierra Classic |
|
| 1979 |
GMC |
K3500 |
Sierra Classic |
|
| 1980 |
GMC |
K3500 |
Sierra Classic |
|
| 1981 |
GMC |
K3500 |
Sierra Classic |
|
| 1982 |
GMC |
K3500 |
Sierra Classic |
|
| 1983 |
GMC |
K3500 |
Sierra Classic |
|
| 1984 |
GMC |
K3500 |
Sierra Classic |
|
| 1985 |
GMC |
K3500 |
Sierra Classic |
|
| 1986 |
GMC |
K3500 |
Sierra Classic |
|
| 1977 |
Chevrolet |
K30 |
Silverado |
|
| 1978 |
Chevrolet |
K30 |
Silverado |
|
| 1979 |
Chevrolet |
K30 |
Silverado |
|
| 1980 |
Chevrolet |
K30 |
Silverado |
|
| 1981 |
Chevrolet |
K30 |
Silverado |
|
| 1982 |
Chevrolet |
K30 |
Silverado |
|
| 1983 |
Chevrolet |
K30 |
Silverado |
|
| 1984 |
Chevrolet |
K30 |
Silverado |
|
| 1985 |
Chevrolet |
K30 |
Silverado |
|
| 1986 |
Chevrolet |
K30 |
Silverado |
|
| 1977 |
Chevrolet |
C30 |
Silverado |
|
| 1978 |
Chevrolet |
C30 |
Silverado |
|
| 1979 |
Chevrolet |
C30 |
Silverado |
|
| 1980 |
Chevrolet |
C30 |
Silverado |
|
| 1981 |
Chevrolet |
C30 |
Silverado |
|
| 1982 |
Chevrolet |
C30 |
Silverado |
|
| 1983 |
Chevrolet |
C30 |
Silverado |
|
| 1984 |
Chevrolet |
C30 |
Silverado |
|
| 1985 |
Chevrolet |
C30 |
Silverado |
|
| 1986 |
Chevrolet |
C30 |
Silverado |
|
| 1979 |
GMC |
C3500 |
Sierra Grande |
|
| 1980 |
GMC |
C3500 |
Sierra Grande |
|
| 1981 |
GMC |
C3500 |
Sierra Grande |
|
| 1982 |
GMC |
C3500 |
Sierra Grande |
|
| 1979 |
GMC |
K3500 |
Sierra Grande |
|
| 1980 |
GMC |
K3500 |
Sierra Grande |
|
| 1981 |
GMC |
K3500 |
Sierra Grande |
|
| 1982 |
GMC |
K3500 |
Sierra Grande |
|
| 1977 |
Chevrolet |
K30 |
Cheyenne |
|
| 1978 |
Chevrolet |
K30 |
Cheyenne |
|
| 1979 |
Chevrolet |
K30 |
Cheyenne |
|
| 1980 |
Chevrolet |
K30 |
Cheyenne |
|
| 1981 |
Chevrolet |
K30 |
Cheyenne |
|
| 1977 |
Chevrolet |
C30 |
Cheyenne |
|
| 1978 |
Chevrolet |
C30 |
Cheyenne |
|
| 1979 |
Chevrolet |
C30 |
Cheyenne |
|
| 1980 |
Chevrolet |
C30 |
Cheyenne |
|
| 1981 |
Chevrolet |
C30 |
Cheyenne |
|
| 1981 |
Chevrolet |
K30 |
Deluxe |
|
| 1981 |
Chevrolet |
C30 |
Deluxe |
|
| 1977 |
Chevrolet |
K30 |
Custom Deluxe |
|
| 1978 |
Chevrolet |
K30 |
Custom Deluxe |
|
| 1979 |
Chevrolet |
K30 |
Custom Deluxe |
|
| 1980 |
Chevrolet |
K30 |
Custom Deluxe |
|
| 1977 |
Chevrolet |
C30 |
Custom Deluxe |
|
| 1978 |
Chevrolet |
C30 |
Custom Deluxe |
|
| 1979 |
Chevrolet |
C30 |
Custom Deluxe |
|
| 1980 |
Chevrolet |
C30 |
Custom Deluxe |
|
| 1977 |
GMC |
C35 |
Base |
|
| 1978 |
GMC |
C35 |
Base |
|
| 1977 |
GMC |
K35 |
Base |
|
| 1978 |
GMC |
K35 |
Base |
|
| 1977 |
GMC |
C35 |
High Sierra |
|
| 1978 |
GMC |
C35 |
High Sierra |
|
| 1977 |
GMC |
K35 |
High Sierra |
|
| 1978 |
GMC |
K35 |
High Sierra |
|
| 1977 |
GMC |
K35 |
Sierra Classic |
|
| 1978 |
GMC |
K35 |
Sierra Classic |
|
| 1977 |
GMC |
C35 |
Sierra Classic |
|
| 1978 |
GMC |
C35 |
Sierra Classic |
|
| 1977 |
GMC |
K35 |
Sierra Grande |
|
| 1978 |
GMC |
K35 |
Sierra Grande |
|
| 1977 |
GMC |
C35 |
Sierra Grande |
|
| 1978 |
GMC |
C35 |
Sierra Grande |
|
Specifications:
| link |
https://www.roughcountry.com/product/m1r-monotube-shock-absorbers-770744rese |
| video |
https://www.youtube.com/watch?v=swG_GL1Xnh0 |
| features |
Monotube shock with external reservoir: Features an internal floating piston for enhanced shock absorption and better heat dissipation, ensuring maximum performance. Faster heat dissipation: Superior heat management ensures that the strut maintains peak performance even under heavy loads and extreme conditions. Durable 2-inch seamless extruded tube: Engineered with a robust, seamless design for enhanced strength and long-lasting durability. 2-inch digressive piston: Offers superior control and comfort with a piston designed for optimal damping and handling in all driving conditions. Self-adjusting, deflective-disc independent rebound and compression: Provides a more responsive and adaptable suspension system by independently adjusting to varying terrain and conditions. 16mm centerless-ground, case-hardened, chromed, and super-polished rod: Built with a high-strength, precision-machined rod for enhanced durability and corrosion resistance. 46mm monotube design: Ensures consistent, fade-free performance in any environment, whether on-road or off-road, delivering superior handling at all times. Digressive valving: Instantly adapts to changing surface conditions, providing a smoother and more controlled ride, no matter the terrain. Galvanized Zinc plated finish: Offers resistance against harsh environmental factors like rust and corrosion, ensuring long-lasting quality. Durable vulcanized natural rubber bushings: Built to withstand high-impact environments while reducing noise and vibration for a more comfortable ride. 3-year Manufacturer's Warranty: Confidence in your purchase with a comprehensive 3-year warranty to protect against defects and ensure lasting performance. |
| install_time |
1-2 hours |
| discount |
30.0 |
| multiple_box |
Y |
| shipping_group |
No Restrictions |
| coo |
CN |
| utv_product |
N |
| added_date |
Tue Sep 15 00:00:00 MDT 2026 |
