Rancho Suspension System Component

2020–2023 Jeep Gladiator

RS66128B-3

Overview:

The Rancho Suspension System Component is designed to elevate the off-road capability and on-road comfort of your 2020–2023 Jeep Gladiator. This premium suspension upgrade provides a 3-inch lift through progressive rate coil springs, allowing for improved ground clearance and the ability to fit larger tires up to 38 inches. Ideal for Jeep enthusiasts who demand enhanced performance on rugged trails without compromising daily drivability, this system combines durability, adjustability, and advanced engineering to transform your Gladiator’s suspension.

Built to work seamlessly with your Jeep’s factory electronic stability system, this component ensures compatibility with original equipment wheels and tires while delivering a balanced ride quality and improved handling characteristics.

Key Features:

This Rancho suspension component offers a comprehensive set of features engineered for performance and longevity:

• 3-inch lift provided by front and rear progressive rate coil springs for increased clearance
• Upper and lower adjustable front control arms for on-vehicle caster adjustment, enhancing comfort and durability
• Heavy-duty front track bar with D2 high-articulation, grease-free, self-centering bushings to reduce noise, vibration, and harshness
• Extended length sway bar end links and front and rear bump stop extensions included for improved suspension travel and articulation
• Brackets fabricated from high-strength, low-alloy steel for long-lasting durability
• Compatible with Rancho RS5000®X or RS9000®XL shock absorbers (sold separately) for tailored ride performance
• Bolt-on installation design for straightforward upgrade without complex modifications
• Supports tire sizes up to 38 inches, depending on manufacturer and additional aftermarket accessories
• Maintains compatibility with Jeep factory electronic stability control systems

Construction & Design:

Rancho’s suspension components are engineered with ruggedness and precision in mind. The adjustable control arms and track bar brackets are constructed from high-strength, low-alloy steel, ensuring resistance to wear and deformation under demanding off-road conditions. The use of Rancho’s proprietary D2 bushings provides maintenance-free operation with high articulation capability, which improves axle alignment and reduces unwanted noise and vibration.

The progressive rate coil springs are designed to offer a smooth ride on pavement while progressively stiffening under heavier loads or rough terrain, delivering both comfort and capability. Every component is crafted to withstand the rigors of trail use while maintaining factory-level reliability and safety.

Installation & Fitment:

This suspension system component is designed for bolt-on installation, making it accessible for experienced DIY enthusiasts and professional installers alike. The adjustable front control arms allow fine-tuning of caster angles directly on the vehicle, simplifying alignment and ensuring optimal handling. No major modifications are required, and the kit maintains compatibility with the Jeep Gladiator’s factory electronic stability system.

Note that this component is part of a four-box kit (RS66128B-1 through RS66128B-4) for a complete suspension upgrade. It is compatible with all 2020–2023 Jeep Gladiator models, including 80th Anniversary, Altitude, Freedom, High Altitude, Launch Edition, Overland, Rubicon, Sport, Sport S, Texas Trail, Willys, and Willys Sport trims. Diesel models are excluded.

What's Included:

• Upper and lower adjustable front control arms
• Front and rear progressive rate coil springs
• Heavy-duty front track bar with D2 bushings
• Front and rear bump stop extensions
• Extended length sway bar end links
• All necessary mounting hardware

Ideal For:

This Rancho suspension system component is perfect for Jeep Gladiator owners seeking a reliable, high-quality lift solution that enhances off-road performance without sacrificing daily driving comfort. Whether you’re tackling rugged trails, upgrading for larger tires, or simply improving your Gladiator’s stance and capability, this system offers a balanced approach to suspension enhancement backed by Rancho’s reputation for durability and innovation.

Rancho is a performance suspension and shock brand for trucks, SUVs, and Jeeps, offering shocks/struts, steering stabilizers, leveling kits, and lift systems built for trail and daily use. Their products are aimed at improving control and stability on rough terrain while maintaining everyday drivability—ideal for rigs that tow, haul, and still see dirt on the weekends.