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Rancho RS5000X 0″ Rear Lift Shocks for 2003-2008 Isuzu Ascender Air Springs
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Rancho RS5000X 0″ Rear Lift Shocks for 2003-2008 Isuzu Ascender Air Springs
Rancho RS5000X 0″ Rear Lift Shocks for 2003-2008 Isuzu Ascender Air Springs
Part Number: RS55386
Summary: The Rancho RS5000X series defines the standard for versatile performance, specifically engineered for the 2003-2008 Isuzu Ascender and Oldsmobile Bravada equipped with rear air springs. Utilizing a sophisticated gas-pressurized twin-tube design, these shocks provide exceptional durability and dent resistance for daily utility. By minimizing aeration and foaming, the RS5000X delivers a consistent, smooth street comfort while maintaining the control necessary for light towing and hauling.
Features
- Crossed Landscape Valve System: A patented progressive engagement valving provides custom-tuned damping to ensure a smooth transition between highway cruising and off-road stability.
- 2.25-inch Twin-Tube Body: The large fluid capacity provides increased heat dissipation to ensure consistent performance under load.
- Nitrogen Gas Pressurization: Pressurized gas charge provides a reduction in oil foaming and aeration to ensure immediate response to road imperfections.
- Protective Boot Included: A heavy-duty polyvinyl accordion boot provides a shield for the shock rod and oil seal to ensure longevity against debris and corrosion.
Technical Specifications
| Specification | Value |
|---|---|
| Series | RS5000X |
| Position | Rear |
| Compressed Length | 14.56 inches |
| Extended Length | 23.09 inches |
| Travel | 8.53 inches |
| Upper Mount Type | LS40 |
| Lower Mount Type | OE-Style Mount |
| Construction | Twin-Tube |
Fitment
- 2003-2008 Isuzu Ascender (with Air Springs)
- 2003-2008 Oldsmobile Bravada (with Air Springs)
- Note: Designed specifically for vehicles at 0″ of rear lift height.
What’s Included
- Includes 2 Shocks
- Protective Polyvinyl Shock Boots
- Installation Bushings and Hardware
Why Choose This Product?
- Engineering Advantage: Rancho’s application-specific tuning ensures that the valving is optimized for the unique weight distribution and air spring dynamics of the Isuzu/Oldsmobile platform.
- Performance Benefit: Drivers experience a significant reduction in body roll and “floating” sensations, resulting in a more planted and confident driving experience.
Related Products
Front Only (Same Series):
Rancho RS5000X 0" Front Lift Shocks for 2003-2008 Isuzu Ascender Air Springs
RS5000X (Kit):
Rancho RS5000X 0" Lift Shocks for 2003-2008 Isuzu Ascender Air Springs
Frequently Asked Questions
Will these shocks lift my vehicle?
No, these shocks are configured for 0-inches of lift and are designed to replace factory-length units while maintaining your current ride height.
Are these compatible with the factory air suspension?
Yes, these shocks are specifically valved to work in conjunction with the rear air spring systems found on the Ascender and Bravada.
What is the benefit of the twin-tube design?
The twin-tube design offers an outer shell that protects the inner working cylinder from dents, making it highly durable for everyday use and light trail work.
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