Rancho Short Arm Suspension System Component Box One: Jeep Wrangler (2007-2017) / Wrangler JK (2018)

Rancho Short Arm Suspension System Component Box One

2007–2018 Jeep Wrangler / Wrangler JK

RS66114B-1

Overview:

The Rancho Short Arm Suspension System Component Box One is engineered to enhance the off-road capability and on-road comfort of your Jeep Wrangler JK. Designed specifically for 2007 to 2017 Jeep Wrangler models and 2018 Wrangler JK, this 4-inch short arm lift kit increases ground clearance and wheel travel, allowing you to confidently tackle rugged trails or enjoy a smoother daily drive. Featuring progressive rate coil springs and adjustable control arms, this kit balances durability with ride quality, making it an ideal upgrade for Jeep enthusiasts seeking both performance and reliability.

This component box is the first of three in the complete Rancho RS66114B master kit, providing essential suspension parts that work together to deliver a comprehensive lift solution tailored to your Jeep’s unique demands.

Key Features:

Rancho’s Short Arm Suspension System Component Box One includes advanced features designed to optimize your Jeep’s suspension performance:

• Front and rear progressive rate coil springs tuned for superior on-road comfort and off-road articulation
• 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 and allow smooth rotation
• Compliance with NHTSA FMVSS126 standards for safety and stability
• Designed to fit up to 37-inch tires, providing up to 4 inches of lift and enhanced ground clearance
• Includes all necessary mounting hardware for a complete installation

Construction & Design:

Rancho builds this suspension system with high-strength, low-alloy steel brackets that ensure long-lasting durability under demanding off-road conditions. The bolt-on design simplifies installation while maintaining structural integrity. The progressive rate coil springs are engineered to deliver a smooth ride on pavement while offering the flexibility needed for rock crawling and trail riding. Rancho’s proprietary D2 bushings are grease-free and designed for high articulation, allowing the suspension components to move freely without premature wear, reducing maintenance requirements over time.

Installation & Fitment:

This kit is designed for direct bolt-on installation on 2-door and 4-door Jeep Wrangler JK models from 2007 through 2018. Installation requires no major modifications, though 2012–2018 models not replacing the front driveshaft will need a Rancho or DynoMax exhaust crossover pipe (sold separately) to ensure proper fitment. The kit supports tire sizes up to 37 inches, but note that aftermarket accessories such as bumpers, sliders, and winches may affect overall lift height and clearance.

What's Included:

• Front and rear progressive rate coil springs
• Adjustable upper and lower 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 off-road capability without sacrificing on-road comfort. Whether you’re a weekend trail rider, rock crawler, or daily driver looking for enhanced ground clearance and suspension travel, Rancho’s Short Arm Suspension System delivers a balanced solution engineered for rugged use and long-term reliability.

Compatibility

• Jeep Wrangler 70th Anniversary 2011
• Jeep Wrangler 75th Anniversary 2016
• Jeep Wrangler Rubicon 2007–2017
• Jeep Wrangler Sahara 2007–2017
• Jeep Wrangler Sport 2010–2017
• Jeep Wrangler Sport S 2016
• Jeep Wrangler Unlimited 70th Anniversary 2011
• Jeep Wrangler Unlimited 75th Anniversary 2016
• Jeep Wrangler Unlimited Rubicon 2007–2017
• Jeep Wrangler Unlimited Sahara 2007–2017
• Jeep Wrangler Unlimited Sport 2010–2017
• Jeep Wrangler Unlimited Sport S 2016
• Jeep Wrangler Unlimited X 2007–2010
• Jeep Wrangler X 2007–2010
• Jeep Wrangler JK Rubicon 2018
• Jeep Wrangler JK Sahara 2018
• Jeep Wrangler JK Sport 2018
• Jeep Wrangler JK Sport S 2018
• Jeep Wrangler JK Unlimited Rubicon 2018
• Jeep Wrangler JK Unlimited Sahara 2018
• Jeep Wrangler JK Unlimited Sport 2018

Buy With Confidence

Rancho backs this suspension system with a limited lifetime warranty, ensuring your investment is protected and your Jeep is ready for any adventure.