Rancho Diesel Suspension System Component

2020–2023 Jeep Wrangler Unlimited Diesel

RS66130BR9-1

Overview:

The Rancho Diesel Suspension System Component is engineered specifically for the 4-door Jeep Wrangler JL Diesel Unlimited models from 2020 through 2023. Designed to enhance off-road capability and on-road comfort, this suspension system provides a versatile lift ranging from 2.0 to 3.5 inches, allowing your Jeep to accommodate up to 35-inch tires. Whether you’re tackling rugged trails, rock crawling, or cruising city streets, this premium suspension upgrade delivers superior handling, stability, and ride quality tailored for diesel-powered Wranglers.

Featuring Rancho’s advanced RS9000XL shocks with customizable damping control, this system is ideal for Jeep enthusiasts seeking a durable, high-performance suspension that maintains a level stance even under heavy loads. It’s a complete solution that balances rugged off-road readiness with everyday drivability.

Key Features:

This suspension system combines innovative technology and robust components to deliver exceptional performance and reliability:

• Front and rear corner-specific progressive rate coil springs tuned for diesel models to maintain a level stance and smooth ride under heavy loads.
• Rancho RS9000XL shocks featuring nine-position adjustable knobs for personalized damping control, allowing you to fine-tune firmness for both on-road and off-road conditions.
• Designed to fit up to 35-inch tires on 17-inch wheels with 4.5-inch backspacing, providing the necessary ground clearance for serious trail riding and rock crawling.
• High-strength, low-alloy steel brackets engineered for durability and long service life.
• Compatibility with Jeep’s factory electronic stability system, ensuring safety and performance without compromising OE wheel and tire use.
• Includes extended sway bar end links and e-brake line relocation brackets for proper geometry and function after lift installation.
• Offers a bolt-on installation process that complies with NHTSA FMVSS126 standards for safety and reliability.
• Supports additional upgrades such as Rancho geometry correction brackets and adjustable control arms (sold separately) for enhanced suspension tuning.

Construction & Design:

Rancho’s Diesel Suspension System Component is built with precision-engineered materials to withstand the demands of off-road driving. The coil springs are corner-specific and progressively rated to handle the extra weight and torque of diesel engines, ensuring your Jeep maintains a balanced and controlled stance. The brackets are fabricated from high-strength, low-alloy steel, providing exceptional durability and resistance to wear and corrosion.

The RS9000XL shocks incorporate advanced DRS (Dual Rate Spring) technology and a nine-position adjustable damping knob, allowing you to customize shock firmness easily. This design offers a perfect blend of comfort and control, adapting seamlessly from rugged trails to highway cruising.

Installation & Fitment:

This suspension system is designed for straightforward bolt-on installation on 4-door Jeep Wrangler JL Diesel Unlimited models from 2020 to 2023. It is compatible with factory electronic stability control systems and allows the use of original equipment wheels and tires. Installation requires ordering both boxes of the lift kit (RS66130BR9-1 and RS66130BR9-2) for a complete setup. Aftermarket accessories such as bumpers, sliders, and winches may affect the final lift height.

What's Included:

• Four Rancho RS9000XL adjustable shocks (front and rear)
• Front and rear corner-specific progressive rate coil springs
• Bump stops
• Front and rear extended sway bar end links
• E-brake line relocation bracket
• All necessary hardware for installation

Ideal For:

This suspension system is perfect for Jeep Wrangler JL Diesel Unlimited owners who demand enhanced off-road capability without sacrificing on-road comfort. It suits enthusiasts who frequently carry heavy loads or tow, as well as those who want to upgrade their vehicle’s stance and ground clearance for serious trail riding, rock crawling, and daily driving versatility.

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.