Rancho Suspension System Component

2020–2023 Jeep Gladiator

RS66128B-4

Overview:

The Rancho Suspension System Component is designed specifically for the Jeep Gladiator models from 2020 through 2023, delivering a robust 3-inch lift to enhance off-road capability and accommodate larger tires. This premium suspension upgrade combines adjustable front control arms with progressive rate coil springs for both front and rear, providing improved ground clearance and superior ride quality. Ideal for Jeep enthusiasts looking to tackle rugged trails or simply elevate their Gladiator’s stance, this system balances performance, durability, and comfort.

Whether you’re upgrading for trail readiness or daily driving with enhanced suspension articulation, the Rancho system offers a comprehensive solution engineered to last and perform under demanding conditions.

Key Features:

This suspension component is packed with advanced features that ensure a reliable and customizable lift experience for your Jeep Gladiator:

• 3-inch lift provided by front and rear progressive rate coil springs to fit up to 38-inch tires (tire size may vary by manufacturer and vehicle modifications)
• Adjustable upper and lower front control arms for on-vehicle caster adjustment, improving handling and ride comfort
• 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 for enhanced suspension travel and articulation
• Compatible with Jeep factory electronic stability control systems, allowing use of original equipment wheels and tires
• Brackets fabricated from high-strength, low-alloy steel for long-lasting durability
• Maintenance-free D2 bushings on control arms and track bar for improved handling without the need for greasing
• Designed to work seamlessly with Rancho RS5000®X or RS9000®XL shock absorbers (sold separately) for a complete suspension upgrade

Construction & Design:

Rancho’s suspension system components are engineered with durability and performance in mind. The brackets and control arms are constructed from high-strength, low-alloy steel, ensuring resistance to wear and deformation under extreme off-road conditions. The system features bolt-on installation hardware for a straightforward upgrade without the need for complex modifications.

The use of Rancho’s proprietary D2 bushings enhances articulation and ride quality by providing self-centering, grease-free operation that minimizes noise and vibration. This design reduces maintenance requirements while delivering consistent performance over time.

Installation & Fitment:

This suspension system is designed for a bolt-on installation process, making it accessible for experienced DIYers and professional installers alike. The adjustable front control arms allow for fine-tuning caster angles directly on the vehicle, ensuring optimal alignment and handling characteristics after lift installation.

It fits Jeep Gladiator JT trucks from 2020 to 2023, including the 80th Anniversary, Altitude, Freedom, High Altitude, Launch Edition, Overland, Rubicon, Sport, Sport S, Texas Trail, Willys, and Willys Sport trims. Note that non-Rubicon models will achieve a slightly taller lift height compared to Rubicon versions. The system ships in four separate boxes (RS66128B-1 through RS66128B-4) to complete the full suspension upgrade.

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 is perfect for Jeep Gladiator owners seeking a reliable, high-quality lift kit that improves off-road capability and tire clearance without compromising ride comfort. It suits trail enthusiasts, weekend adventurers, and anyone wanting to upgrade their Gladiator’s suspension for enhanced durability and performance on and off the road.

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.