Rancho RS7MT 2.5-4″ Rear Lift Shocks for 1969-1986 Chevy K-20 4WD

Description
Rancho RS7MT 2.5-4″ Rear Lift Shocks for 1969-1986 Chevy K-20 4WD

Rancho RS7MT 2.5-4″ Rear Lift Shocks for 1969-1986 Chevy K-20 4WD

Part Number: RS77112

Summary: The Rancho RS7MT Monotube series is engineered for high-performance handling and rapid heat dissipation on vehicles with 2.5 to 4 inches of rear lift. Designed specifically for the Chevy K-20 4WD, these shocks utilize a high-pressure nitrogen gas charge to provide a consistent, fade-free ride during demanding off-road excursions. The monotube architecture ensures precise damping response, effectively eliminating aeration and foam buildup common in standard shocks.

Features

• Monotube Design: A high-pressure nitrogen gas charge provides rapid damping response to ensure consistent control over washboard terrain.
• Internal Floating Piston: The IFP separates the gas from the oil to provide zero aeration and fade-free performance during high-frequency cycling.
• Hardened Nitro-Carburized Rod: The heavy-duty piston rod provides superior scuff and corrosion resistance to ensure long-term seal integrity.
• OE-Style Mounts: The application-specific mounting hardware provides a direct-fit installation to ensure a secure connection to the factory chassis points.

Technical Specifications

Fitment

• 1969-1986 Chevy K-20 4WD
• Note: Configured for vehicles with 2.5 to 4 inches of rear lift height.

What’s Included

• (2) Rancho RS7MT Monotube Shocks
• Installation Hardware
• Protective Dust Boots

Why Choose This Product?

• Engineering Advantage: Rancho’s RS7MT series utilizes a high-pressure monotube design that reacts faster to terrain changes than traditional twin-tube shocks.
• Performance Benefit: Large-bore construction and specialized valving reduce internal temperatures, preventing “shock fade” during heavy hauling or off-road use.

Related Products

RS5000X (Front):
Rancho RS5000X 2.5-4" Front Lift Shocks for 1969-1986 Chevy K-20 4WD

RS5000X (Rear):
Rancho RS5000X 2.5-4" Rear Lift Shocks for 1969-1986 Chevy K-20 4WD

RS90000XL (Rear):
Rancho RS90000XL 2.5-4" Rear Lift Shocks for 1969-1986 Chevy K-20 4WD

RS90000XL (Front):
Rancho RS90000XL 2.5-4" Front Lift Shocks for 1969-1986 Chevy K-20 4WD

RS90000XL (Kit):
Rancho RS90000XL 2.5-4" Lift Shocks for 1969-1986 Chevy K-20 4WD

RS5000X (Kit):
Rancho RS5000X 2.5-4" Lift Shocks for 1969-1986 Chevy K-20 4WD

Frequently Asked Questions

Will these shocks lift my Chevy K-20?
No, these shocks do not create lift. They are specifically valved and sized to accommodate vehicles that already have 2.5 to 4 inches of rear lift installed.

What is the benefit of a Monotube shock over a Twin-Tube?
Monotube shocks like the RS7MT feature a single cylinder and a floating piston that separates the oil and gas, allowing for better heat dissipation and more precise valving response.

Are these shocks sold as a pair?
Yes, this specific SKU (2xRS77112) includes a pair of two (2) rear shocks for a complete axle installation.