Rancho Adjustable Suspension Control Arm Kit (FRONT UPPER)

2018–2023 Jeep Wrangler / 2020–2023 Jeep Gladiator

RS66164B

Overview:

The Rancho Adjustable Suspension Control Arm Kit (Front Upper) is engineered to enhance the ride quality and suspension performance of your Jeep Wrangler JL or Gladiator JT. Designed for both stock and lifted vehicles up to 4.5 inches, this kit provides precise adjustment capabilities for caster and pinion angles without the need to remove the control arms. Ideal for off-road enthusiasts and daily drivers alike, it reduces noise, vibration, and harshness, delivering a smoother, more controlled driving experience.

Built to withstand rigorous use, this kit is perfect for Jeep owners seeking durable, maintenance-free suspension components that improve handling and extend the life of their vehicle’s front suspension system.

Key Features:

Rancho’s Adjustable Suspension Control Arm Kit offers a range of advanced features designed to optimize your Jeep’s suspension performance:

• Maintenance-Free Bushings: Equipped with Rancho’s D2 high-articulation, grease-free, self-centering bushings featuring a PTFE liner for long-lasting, lubrication-free operation.
• Heavy-Duty Construction: 1.25-inch outer diameter upper arms made from 0.188-inch DOM wall tubing with forged ends for superior strength and durability.
• Adjustability: Allows easy adjustment of caster and pinion angles to fine-tune suspension geometry without removing the arms.
• Ride Quality Improvement: Reduces noise, vibration, and harshness (NVH) for a more comfortable and controlled ride.
• Corrosion Resistance: Finished with a durable black powder coat that resists rust and corrosion in harsh environments.
• Compatibility: Designed to fit stock and lifted Jeep Wrangler JL (2018–2023) and Gladiator JT (2020–2023) models with lifts up to 4.5 inches.
• Easy Installation: Includes two preassembled control arms for straightforward, time-saving installation.
• Limited Lifetime Warranty: Backed by Rancho’s commitment to quality and customer satisfaction.

Construction & Design:

This suspension control arm kit is crafted from heavy-duty 0.188-inch DOM (Drawn Over Mandrel) steel tubing, providing exceptional strength and resistance to bending or flexing under demanding conditions. The 1.25-inch outer diameter bars are reinforced with forged ends, ensuring a secure and durable connection to your Jeep’s suspension system.

Rancho’s proprietary D2 bushings incorporate a PTFE liner that acts as a self-lubricating agent, eliminating the need for regular maintenance and preventing premature wear. The bushings are designed for high articulation, allowing for smooth suspension movement and improved handling characteristics.

The entire assembly is coated with a black powder finish that protects against corrosion, extending the lifespan of the components even in wet or off-road environments.

Installation & Fitment:

The Rancho Adjustable Suspension Control Arm Kit is designed for a direct bolt-on installation on Jeep Wrangler JL models from 2018 through 2023 and Jeep Gladiator JT models from 2020 through 2023. It accommodates both stock and lifted suspensions up to 4.5 inches, making it versatile for a wide range of setups.

Installation is simplified by the inclusion of two preassembled control arms, reducing assembly time and ensuring proper fitment. No special modifications or additional parts are required, allowing for a straightforward upgrade to your vehicle’s front suspension.

What's Included:

• Two preassembled front upper adjustable suspension control arms
• Rancho D2 maintenance-free bushings installed
• Installation hardware and instructions (where applicable)

Ideal For:

This control arm kit is ideal for Jeep Wrangler and Gladiator owners who want to improve suspension performance, especially those with lifted vehicles up to 4.5 inches. It suits off-road enthusiasts seeking enhanced articulation and durability, as well as daily drivers looking for reduced noise and vibration for a more comfortable ride. The adjustable design also appeals to those who require precise suspension tuning for optimal handling and driveline alignment.

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.