Rancho Rear Upper Adjustable Control Arm Kit

1997–2006 Jeep Wrangler

RS66162B

Overview:

The Rancho Rear Upper Adjustable Control Arm Kit is engineered specifically for Jeep Wrangler models from 1997 to 2006, including both stock and lifted setups up to 4 inches. Designed to enhance suspension geometry and improve ride quality, this kit offers Jeep enthusiasts a durable and maintenance-free solution for rear upper control arm replacement or upgrade. Whether you are restoring your Wrangler to factory performance or optimizing it for off-road adventures, Rancho’s adjustable control arms provide precise alignment and improved handling characteristics.

Built to withstand the rigors of daily driving and off-road conditions, this kit reduces noise, vibration, and harshness, delivering a smoother and more controlled ride. Its adjustable design allows for fine-tuning of pinion angles, which is essential for lifted vehicles to maintain drivetrain reliability and optimize suspension articulation.

Key Features:

This control arm kit combines advanced materials and innovative bushing technology to deliver long-lasting performance and ease of use. Key features include:

• Adjustable Design: Allows precise adjustment of pinion angles to accommodate lifts up to 4 inches, improving driveline alignment and reducing wear.
• Maintenance-Free Bushings: Equipped with Rancho’s D2 high-articulation, grease-free, self-centering bushings featuring a PTFE liner for long-lasting, quiet operation without the need for lubrication.
• Heavy-Duty Construction: Made from 1.25-inch outer diameter DOM tubing with 0.188-inch wall thickness and forged ends for superior strength and durability.
• Corrosion Resistance: Finished with a durable black powder coat that protects against rust and corrosion, ensuring longevity in harsh environments.
• Improved Ride Quality: Reduces noise, vibration, and harshness (NVH) for a more comfortable driving experience on and off the road.
• Preassembled Components: Includes two fully assembled control arms for straightforward installation and reduced setup time.
• Limited Lifetime Warranty: Backed by Rancho’s confidence in quality and durability.

Construction & Design:

Rancho’s Rear Upper Adjustable Control Arms are crafted from heavy-duty DOM (Drawn Over Mandrel) steel tubing, measuring 1.25 inches in diameter with a robust 0.188-inch wall thickness. This construction provides exceptional strength and resistance to bending or deformation under demanding conditions. The forged ends enhance durability at critical connection points, ensuring reliable performance over time.

The kit features Rancho’s proprietary D2 bushings, which are designed to be maintenance-free and self-lubricating thanks to an internal PTFE liner. This advanced bushing technology reduces friction and wear, resulting in quieter operation and longer service life compared to traditional rubber or greasable bushings.

To protect against environmental damage, the control arms are coated with a black powder finish that resists rust and corrosion, making them well-suited for off-road use and exposure to moisture, dirt, and road salts.

Installation & Fitment:

The Rancho Rear Upper Adjustable Control Arm Kit is designed for easy installation on Jeep Wrangler TJ models from 1997 through 2006, including the 65th Anniversary Edition, Rubicon, Sahara, SE, Sport, Unlimited, Unlimited Rubicon, and X trims. It fits both stock height vehicles and those lifted up to 4 inches.

Each kit includes two preassembled control arms, simplifying the installation process and reducing the need for additional assembly or modification. The adjustable feature allows installers to fine-tune pinion angles for optimal driveline alignment, which is especially important when running a suspension lift. Basic hand tools and standard mechanical knowledge are sufficient for installation, making it accessible for experienced DIYers and professional shops alike.

What's Included:

• Two preassembled rear upper adjustable control arms
• Installation hardware (where applicable)
• Instructions for adjustment and installation

Ideal For:

This control arm kit is ideal for Jeep Wrangler TJ owners seeking to restore or upgrade their rear suspension for improved ride quality, durability, and driveline alignment. It is particularly suited for those with lifted Wranglers up to 4 inches who need adjustable components to maintain proper pinion angles and reduce drivetrain stress. Off-road enthusiasts, daily drivers, and restoration projects will all benefit from the enhanced performance and maintenance-free design of this Rancho kit.

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.