Rancho Coil Spring Kit (REAR)

2020–2023 Jeep Gladiator JT

RS80139

Overview:

The Rancho Coil Spring Kit (REAR) is engineered specifically for the Jeep Gladiator models from 2020 through 2023, designed to enhance the vehicle’s rear suspension performance under demanding conditions. Ideal for Gladiator owners who frequently haul heavy loads, tow trailers, or outfit their trucks with aftermarket accessories such as bumpers, sliders, and winches, this kit delivers a reliable solution to maintain proper ride height and improve handling.

These heavy-duty, corner-specific progressive rate coil springs provide an average lift of 3.5 inches in the rear, compensating for the added weight and preventing sagging. Whether you’re overlanding, carrying gear, or towing, the Rancho Coil Spring Kit ensures your Gladiator maintains optimal stance and stability for a safer, more controlled ride.

Key Features:

Rancho’s rear coil springs are designed with durability and performance in mind. Key features include:

• Progressive rate coil springs tailored for the rear corners of the Jeep Gladiator
• Average 3.5-inch lift to offset continuous heavy loads and aftermarket equipment
• Improved spring rate for enhanced load-bearing capacity and ride quality
• Heavy-duty construction to withstand demanding off-road and towing conditions
• Powder-coated finish to resist rust and corrosion for long-lasting durability
• Shot-peened and heat-treated steel for superior strength and fatigue resistance
• Includes all necessary hardware for straightforward installation
• Limited one-year warranty from Rancho for peace of mind

Construction & Design:

Crafted from high-strength steel, the Rancho rear coil springs undergo a rigorous manufacturing process that includes shot peening and heat treatment. Shot peening enhances the metal’s fatigue resistance by inducing compressive stresses on the surface, while heat treatment optimizes the steel’s hardness and durability. This combination ensures the springs maintain their performance characteristics over extended use, even under heavy loads.

The powder-coated finish provides a robust barrier against rust and corrosion, essential for vehicles exposed to harsh weather and off-road environments. The corner-specific design means each spring is engineered to fit precisely on the left or right rear side of the Gladiator, ensuring balanced support and consistent ride height.

Installation & Fitment:

The Rancho Coil Spring Kit is designed for easy installation on Jeep Gladiator JT models from 2020 to 2023, including popular trims such as the 80th Anniversary, Altitude, Freedom, High Altitude, Launch Edition, Overland, Rubicon, Sport, Sport S, Texas Trail, Willys, and Willys Sport. The kit includes two rear coil springs and all necessary hardware, allowing for a straightforward replacement of the factory springs without the need for additional modifications.

Installation typically requires standard suspension tools and moderate mechanical experience. The progressive rate springs restore proper rear ride height and improve load handling, making this kit an excellent upgrade for Gladiator owners who regularly carry heavy gear or tow trailers.

What's Included:

• Two rear progressive rate coil springs (corner-specific)
• Installation hardware
• Limited one-year warranty documentation

Ideal For:

This coil spring kit is ideal for Jeep Gladiator owners who:

• Use their vehicle for overlanding or extended off-road adventures
• Frequently haul heavy loads or tow trailers
• Have installed aftermarket accessories that add weight to the rear suspension
• Require improved rear suspension performance and ride height retention
• Desire a durable, long-lasting upgrade to their factory springs

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.