Rancho Suspension System (Front and Rear)
2020–2023 Jeep Gladiator
RS66128B
Overview:
The Rancho Suspension System RS66128B is engineered to elevate your Jeep Gladiator’s off-road capability and on-road comfort. Designed specifically for 2020 to 2023 Jeep Gladiator models, this complete front and rear suspension kit provides a balanced 3-inch lift, enhancing ground clearance and articulation for trail-ready performance. Featuring adjustable front control arms and progressive rate coil springs, this system is ideal for enthusiasts seeking improved suspension travel, ride quality, and rugged durability.
Whether you’re tackling rocky terrain, deep ruts, or daily driving, the Rancho RS3 suspension system delivers a smooth, controlled ride while maintaining factory-like handling characteristics. It’s a premium upgrade for Gladiator owners who demand both performance and reliability from their suspension setup.
Key Features:
This Rancho suspension system combines advanced engineering with quality components to optimize your Jeep Gladiator’s suspension performance:
- 3-inch lift height with adjustable front control arms for precise alignment and geometry correction
- Progressive rate coil springs front and rear for improved load handling and ride comfort
- Compatible with Rancho front shock absorbers RS999065, RS77065, RS55065
- Compatible with Rancho rear shock absorbers RS999070, RS77070, RS55070
- Optional front extended travel shocks available (RS999067, RS77067, RS55067) for enhanced articulation
- Recommended rear driveshaft replacement to prevent contact with fuel tank skid plate during maximum articulation
- Short arm suspension design for improved off-road performance and durability
- Fits a wide range of Jeep Gladiator trims including Sport, Overland, Rubicon, Willys, Altitude, Launch Edition, and more
Construction & Design:
Rancho’s suspension system is built with high-quality materials engineered to withstand the rigors of off-road use. The adjustable front control arms are crafted from durable steel to provide strength and precise suspension tuning. Progressive rate coil springs are designed to offer a smooth ride on pavement while progressively stiffening under load to handle rough terrain and heavy payloads.
The system’s design ensures compatibility with factory mounting points and shock absorbers, allowing for straightforward installation and reliable performance. Rancho’s attention to detail in engineering ensures that the suspension maintains proper geometry and articulation throughout its travel range.
Installation & Fitment:
This suspension system is a direct fit for 2020 through 2023 Jeep Gladiator models, including Sport, Sport S, Overland, Rubicon, Willys, Willys Sport, Altitude, High Altitude, Launch Edition, Freedom, and 80th Anniversary editions. Installation requires replacing front and rear coil springs and control arms, with optional shock absorber upgrades available.
Rancho recommends replacing the rear driveshaft with Powertrain Industries part number 3191-6550 to avoid interference with the fuel tank skid plate during maximum suspension articulation. For use with optional extended travel front shocks, an aftermarket double cardan front driveshaft is required. Professional installation is advised to ensure proper alignment and suspension geometry.
What's Included:
- Adjustable front control arms
- Front progressive rate coil springs
- Rear progressive rate coil springs
- Installation hardware and instructions
Ideal For:
This Rancho suspension system is perfect for Jeep Gladiator owners who want to enhance their vehicle’s off-road capability without sacrificing daily drivability. It suits trail enthusiasts, overlanders, and anyone looking to improve ground clearance, suspension travel, and ride quality on a variety of terrains. Compatible with multiple Gladiator trims, it offers a versatile upgrade for both casual weekend adventurers and serious off-roaders.
