Rancho RS5000X 2.5-4″ Lift Shocks for 1988-1999 Chevy K1500 4WD

Description
Rancho RS5000X 2.5-4″ Lift Shocks for 1988-1999 Chevy K1500 4WD

Rancho RS5000X 2.5-4″ Lift Shocks for 1988-1999 Chevy K1500 4WD

Part Number: RS55001 / RS55190

Summary: The Rancho RS5000X series is engineered to provide a significant upgrade in ride quality for the Chevy K1500 and GMC Yukon. Utilizing a sophisticated twin-tube design with Cross-Tuning technology, these shocks manage the increased unsprung weight of larger tires and lift kits effectively. This set is specifically configured for vehicles with 2.5 to 4 inches of suspension lift, ensuring the piston remains in the optimal stroke zone for both daily driving and light off-road use.

Features

• Cross-Tuning Technology: A unique valve system provides a progressive engagement curve to ensure smooth street comfort and controlled damping on rough terrain.
• Gas Pressurization: High-pressure nitrogen gas charge provides a consistent hydraulic response to ensure reduced aeration and foaming during rapid cycling.
• Heavy-Duty Body: A 2.25-inch diameter reserve tube provides increased oil capacity to ensure lower operating temperatures and consistent performance under load.
• Nitro-Carburized Piston Rod: The hardened 16mm rod provides superior corrosion resistance and structural integrity to ensure long-term durability in harsh environments.

Technical Specifications

Fitment

• 1988-1999 Chevy K1500 4WD
• 1992-1999 GMC Yukon
• Note: Fits 2 & 4 Door models specifically equipped with Rancho Suspension systems.

What’s Included

• (2) RS55001 Front Shock Absorbers
• (2) RS55190 Rear Shock Absorbers
• Protective Red Dust Boots
• Required Mounting Hardware and Bushings

Why Choose This Product?

• Engineering Advantage: Rancho’s Cross-Tuning valve logic balances the low-speed damping required for handling with high-speed blow-off for impact absorption.
• Performance Benefit: Eliminates the “harsh” ride often associated with lifted trucks by providing a more compliant, refined damping profile.

Related Products

RS5000X (Rear):
Rancho RS5000X 2.5-4" Rear Lift Shocks for 1988-1999 Chevy K1500 4WD

RS5000X (Front):
Rancho RS5000X 2.5-4" Front Lift Shocks for 1988-1999 Chevy K1500 4WD

RS90000XL (Front):
Rancho RS90000XL 2.5-4" Front Lift Shocks for 1988-1999 Chevy K1500 4WD

RS90000XL (Rear):
Rancho RS90000XL 2.5-4" Rear Lift Shocks for 1988-1999 Chevy K1500 4WD

RS90000XL (Kit):
Rancho RS90000XL 2.5-4" Lift Shocks for 1988-1999 Chevy K1500 4WD

Frequently Asked Questions

Does this kit provide the 4 inches of lift?
No, these shocks do not create lift. They are specifically lengthened and valved to work on vehicles that already have a 2.5-inch to 4-inch suspension lift installed.

Will these fit a 2WD Chevy C1500?
No, these are engineered specifically for the 4WD (K-Series) chassis and will not fit 2WD models due to different mounting configurations.

Are the boots required for installation?
While the shocks can function without them, the included red boots protect the nitro-carburized rod from rock chips and debris, extending the life of the oil seals.