Take on rough terrain with the Rancho RS7MT RS77198 Rear Suspension Shock Absorber, an application-tuned monotube shock built for precision on-road and off-road handling. It installs as a direct-fit rear replacement for the listed trucks, including the 1999-2025 Chevrolet Silverado 1500, 2007 Chevrolet Silverado 1500 Classic, 2019 Chevrolet Silverado 1500 LD, 2022 Chevrolet Silverado 1500 LTD, 1994-2001 Dodge Ram 1500, 1994-1996 Dodge Ram 2500, 1999-2025 GMC Sierra 1500, 2007 GMC Sierra 1500 Classic, and the 2019 and 2022 GMC Sierra 1500 Limited — see the Buyer's Guide tab for the full list.
- Precise handling: Deflective Disc Valving uses digressive, linear or progressive tuning based on application for controlled performance on- and off-road.
- Strong and durable: 14mm hardened chrome piston rod resists scuffs and corrosion, with double-welded loops at stress areas, a double-strength closure and a hot-form reserve tube.
- Handles temperature swings: a large 2-in. monotube body filled with all-weather fluid runs cooler and withstands internal temperatures of -40 to 248°F, while high-pressure nitrogen gas and a full-floating dividing piston help reduce aeration and shock fade.
- Smooth ride: internal rebound bumper, shouldered rubber bushings and a PTFE-banded piston help reduce noise, vibration and harshness.
An integrated dirt-wiper sealing system helps keep dirt and debris out of the shock. Finished in black satin with the Rancho red logo and backed by Rancho's Limited Lifetime Warranty. For extra protection, add shock boot RS1952 or RS1961.
Frequently Asked Questions
What does the Rancho RS77198 shock do?
It's a rear monotube suspension shock absorber that dampens spring motion to help control ride and handling on- and off-road on the listed trucks.
Does this fit my Silverado or Sierra 1500?
It's a rear direct-fit replacement for the 1999-2025 Silverado 1500 and Sierra 1500, plus the Classic, LD, LTD and Limited variants and select Dodge Ram trucks. Check the Buyer's Guide tab.
Is this a monotube shock?
Yes. It uses a large 2-in. monotube body with a full-floating dividing piston and high-pressure nitrogen gas to help reduce aeration and shock fade.
What temperature range can it handle?
The all-weather fluid allows for cooler operation and is designed to withstand internal temperatures of -40 to 248°F.
Does it come with a shock boot or extra hardware?
Its application-specific mounting installs with no sleeves or extra hardware needed. A shock boot is not included, but boot RS1952 or RS1961 can be purchased separately.
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