Rancho RS5000X 5-6″ Lift Shocks for 2011-2018 GMC Sierra 3500HD

Description
Rancho RS5000X 5-6″ Lift Shocks for 2011-2018 GMC Sierra 3500HD

Rancho RS5000X 5-6″ Lift Shocks for 2011-2018 GMC Sierra 3500HD

Part Number: RS55382 / RS55383

Summary: The Rancho RS5000X series provides a significant upgrade for the GMC Sierra 3500HD, utilizing a patented progressive rebound and compression disc system. Designed for heavy-duty trucks with 5-6 inches of lift, these twin-tube shocks excel at absorbing harsh impacts while maintaining smooth street manners. The gas-pressurized design minimizes aeration, ensuring consistent damping performance whether you are commuting or hauling heavy loads.

Features

• Cross-Tuned Technology: A unique valve system provides a progressive damping curve to ensure controlled ride quality across varying terrain.
• Twin-Tube Gas Pressure: The nitrogen-charged 1.375-inch bore provides low-pressure gas charge to ensure reduced fluid aeration and fade-free performance.
• Protective Boot: Included polyvinyl accordion boots provide a physical barrier for the piston rod to ensure long-term seal durability against road debris.
• Glass-Filled Fluon Piston Wrap: A specialized PTFE-based seal provides a consistent seal between the piston and pressure tube to ensure smooth operation under extreme temperatures.

Technical Specifications

Fitment

• 2011-2018 GMC Sierra 3500HD
• Note: Configured for vehicles equipped with 5 to 6 inches of suspension lift.

What’s Included

• (2) RS55382 Front Shock Absorbers
• (2) RS55383 Rear Shock Absorbers
• Polyvinyl Protective Boots
• Required Installation Bushings and Hardware

Why Choose This Product?

• Engineering Advantage: Rancho’s application-specific valving is tuned to the high-GVWR requirements of the GMC 3500HD chassis, preventing the “floaty” feel common with generic shocks.
• Performance Benefit: Improved rebound control reduces vehicle body roll and nose-dive, resulting in a more planted and confident driving experience when towing.

Related Products

RS5000X (Rear):
Rancho RS5000X 5-6" Rear Lift Shocks for 2011-2018 GMC Sierra 3500HD

RS5000X (Front):
Rancho RS5000X 5-6" Front Lift Shocks for 2011-2018 GMC Sierra 3500HD

Frequently Asked Questions

Will these shocks lift my GMC Sierra 3500HD?
No, these shocks do not create lift. They are specifically lengthened and valved to work on vehicles already equipped with a 5-6 inch suspension lift kit.

What is the benefit of the RS5000X twin-tube design?
The twin-tube design offers an outer reserve tube that protects the inner pressure tube from dents and debris, making it exceptionally durable for work trucks and off-road use.

Are these shocks sold as a complete set?
Yes, this specific SKU includes a full set of four shocks (two front and two rear) for a complete vehicle overhaul.