SuperPro Upper Trailing Arm Set

2007–2023 Jeep Wrangler & Jeep Wrangler JK

TRC1186

Overview:

The SuperPro Upper Trailing Arm Set is engineered specifically for lifted Jeep Wrangler models from 2007 through 2023, including JK variants from 2018. Designed to correct pinion angle issues commonly encountered on lifted vehicles, this adjustable trailing arm kit enhances both on-road stability and off-road articulation. Ideal for Jeep enthusiasts who have lifted their vehicles up to 4 inches, it provides a reliable and durable solution to suspension geometry challenges, ensuring improved driveline alignment and reduced vibration.

Supplied as a complete, fully assembled kit, the arms come fitted with SuperPro’s proprietary bushings, which are optimized for longevity and performance without introducing unwanted noise, vibration, or harshness (NVH). Whether used as a standalone upgrade or paired with SuperPro’s heavy-duty adjustable rear lower control arms and front arms, this kit forms a critical component of a comprehensive suspension enhancement package.

Key Features:

This upper trailing arm set offers a range of benefits tailored to lifted Jeep Wrangler applications:

• Off-vehicle adjustable design for precise pinion angle correction
• Compatible with lifted Jeep Wranglers up to 4 inches
• Includes left and right rear upper control arms for balanced suspension geometry
• Fitted with SuperPro’s high-performance polyurethane bushings for durability and reduced NVH
• Fully assembled kit for straightforward installation
• Improves driveline alignment to reduce vibrations and drivetrain wear
• Enhances both on-road handling and off-road articulation
• Developed and tested by SuperPro’s Australian R&D team for quality assurance
• Compatible with a wide range of Jeep Wrangler trims and special editions from 2007 to 2023

Construction & Design:

The SuperPro Upper Trailing Arm Set is constructed from high-strength steel components engineered to withstand the rigors of off-road use and lifted suspension setups. The arms are precision-manufactured and powder-coated for corrosion resistance and long-term durability. SuperPro’s proprietary polyurethane bushings are designed to provide a perfect balance between compliance and stiffness, ensuring improved suspension response without transmitting excessive noise or harshness into the cabin.

Every arm is fully assembled and pre-fitted with bushings, allowing for quick installation and reducing the risk of incorrect assembly. The off-car adjustability feature enables precise tuning of the pinion angle, which is critical for maintaining optimal driveline geometry on lifted vehicles.

Installation & Fitment:

Installation of the SuperPro Upper Trailing Arm Set is straightforward for experienced technicians and enthusiasts familiar with suspension work. The kit is designed to fit Jeep Wrangler models from 2007 to 2023, including JK models from 2018, and accommodates lifts up to 4 inches without requiring additional modifications. The off-car adjustable arms allow for fine-tuning of the pinion angle before final installation, simplifying the alignment process and ensuring optimal driveline performance.

For best results, this kit can be combined with SuperPro’s heavy-duty adjustable rear lower control arms and front arms to achieve a complete suspension upgrade tailored to lifted Jeep Wranglers.

What's Included:

• Left Rear Upper Trailing Arm (fully assembled with SuperPro bushings)
• Right Rear Upper Trailing Arm (fully assembled with SuperPro bushings)
• Adjustment hardware and instructions

Ideal For:

• Jeep Wrangler owners who have lifted their vehicles up to 4 inches
• Off-road enthusiasts seeking improved suspension geometry and driveline alignment
• Drivers wanting to reduce vibration and drivetrain wear caused by incorrect pinion angles
• Those looking for a durable, long-lasting suspension upgrade with minimal NVH impact
• Jeep Wrangler JK and JL owners aiming for a comprehensive suspension enhancement when paired with other SuperPro adjustable control arms

SuperPro is an Australian suspension specialist known for high-performance polyurethane bushings, control arms, and sway bar components designed for both 4x4 and performance vehicles. Their parts are built to sharpen handling and improve durability compared with worn factory rubber, making them a common upgrade for enthusiasts chasing tighter response and longer-lasting suspension control.