Rancho Short Arm Suspension System Component

2007–2017 Jeep Wrangler / 2018 Jeep Wrangler JK

RS66114B-2

Overview:

The Rancho Short Arm Suspension System Component is engineered to enhance the off-road capability and on-road comfort of your Jeep Wrangler JK. Designed to provide a 4-inch lift, this kit increases ground clearance and wheel travel, allowing for larger tires up to 37 inches. Ideal for Jeep enthusiasts who demand superior performance on rugged trails without sacrificing daily driving comfort, this suspension system combines durability with advanced technology to deliver a balanced ride.

Whether you are tackling rock crawling, trail riding, or simply seeking a more aggressive stance, the Rancho RS66114B-2 suspension lift kit offers a comprehensive solution for both front and rear suspension upgrades. It is part two of a three-box master kit designed specifically for Jeep Wrangler models from 2007 through 2018.

Key Features:

This suspension system integrates multiple components and technologies to optimize your Jeep’s handling and durability:

• Includes front and rear progressive rate coil springs tuned for superior on-road comfort and off-road performance
• Adjustable upper and lower control arms for precise alignment and improved handling
• Heavy-duty front and rear adjustable track bars to maintain proper axle positioning
• Extended sway bar end links to accommodate increased suspension travel
• Bump stop spacers to prevent suspension over-compression and protect components
• Maintenance-free D2 high-articulation, grease-free bushings that reduce wear by allowing sleeve rotation without resistance
• Designed to fit tires up to 37 inches for enhanced off-road capability
• Complies with NHTSA FMVSS126 safety standards for stability and control
• Requires Rancho or DynoMax exhaust crossover pipe for 2012–2018 models when not replacing the front driveshaft (sold separately)

Construction & Design:

Rancho’s suspension components are crafted from high-strength, low-alloy steel to ensure long-lasting durability under extreme conditions. The bolt-on design simplifies installation and reduces downtime. The progressive rate coil springs are engineered to provide a smooth ride on pavement while delivering the necessary support for off-road articulation. The adjustable control arms and track bars feature advanced bushings that eliminate the need for greasing, enhancing longevity and reducing maintenance.

Installation & Fitment:

This kit is designed for straightforward installation on both 2-door and 4-door Jeep Wrangler JK models from 2007 to 2018. It is box 2 of 3 in the complete RS66114B master kit, requiring the purchase of boxes 1 and 3 for a full suspension upgrade. Installation may require the use of Rancho or DynoMax exhaust crossover pipes on 2012–2018 models if the front driveshaft is not replaced. No major modifications are necessary, making it a practical choice for enthusiasts looking to upgrade their suspension with confidence.

What's Included:

• Front and rear progressive rate coil springs
• Upper and lower adjustable control arms
• Heavy-duty front and rear adjustable track bars
• Extended sway bar end links
• Bump stop spacers
• All necessary mounting hardware

Ideal For:

This suspension system is perfect for Jeep Wrangler owners who want to improve ground clearance and suspension travel for off-road adventures while maintaining comfortable daily driving. It suits rock crawlers, trail riders, and those seeking to fit larger tires without compromising vehicle stability or ride quality. The kit’s durable construction and maintenance-free components also appeal to enthusiasts looking for a reliable, long-lasting suspension upgrade.

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.