SuperPro Lower Trailing Arm Set

2007–2018 Jeep Wrangler JK

TRC1189

Overview:

The SuperPro Lower Trailing Arm Set is a precision-engineered suspension upgrade designed specifically for Jeep Wrangler JK models from 2007 through 2018. This kit includes left and right front lower control arms tailored for lifted vehicles up to 4 inches, offering off-car adjustability to correct pinion angle and restore positive caster. Ideal for Jeep enthusiasts seeking improved on-road handling and enhanced off-road durability, these trailing arms ensure accurate tracking and suspension geometry after lift installation.

Whether you are restoring factory suspension performance or upgrading for more demanding off-road conditions, this SuperPro kit delivers a reliable, adjustable solution that enhances vehicle stability and drivability.

Key Features:

Engineered for lifted Jeep Wrangler JKs, the SuperPro Lower Trailing Arm Set offers the following benefits:

• Adjustable design allows precise pinion angle correction for lifted vehicles up to 4 inches
• Restores and increases positive caster for improved steering response and stability
• Supplied as a complete, fully assembled kit with premium SuperPro polyurethane bushings
• Durable construction optimized for longevity and resistance to off-road stresses
• Reduces unwanted noise, vibration, and harshness (NVH) for a smoother ride
• Compatible as a standalone upgrade or combined with SuperPro HD adjustable rear and front control arms for a comprehensive suspension overhaul
• Tested and developed by SuperPro’s Australian R&D team to ensure quality and performance
• Designed specifically for Jeep Wrangler JK models including Rubicon, Sahara, Sport, and Unlimited variants

Construction & Design:

The trailing arms are constructed from high-strength steel with precision welding and finishing to withstand the rigors of both on-road and off-road use. SuperPro’s proprietary polyurethane bushings are engineered to provide superior durability compared to factory rubber components, resisting wear, cracking, and deformation over time. This combination of robust materials and advanced bushing technology ensures the suspension maintains proper alignment and articulation under load, enhancing vehicle control and comfort.

Each arm is fully assembled and pre-set for ease of installation, with off-car adjustability allowing fine-tuning of pinion angle to optimize drivetrain alignment and reduce vibration.

Installation & Fitment:

The SuperPro Lower Trailing Arm Set is designed for direct fitment on Jeep Wrangler JK models from 2007 to 2018, including Rubicon, Sahara, Sport, Sport S, and Unlimited trims. Installation requires basic suspension knowledge and standard hand tools. The arms are off-car adjustable, enabling precise pinion angle correction before final installation, which helps maintain drivetrain longevity and improves handling characteristics.

No major modifications are necessary, making this kit an accessible upgrade for enthusiasts looking to improve lifted Jeep Wrangler suspension geometry and performance.

What's Included:

• Left front lower trailing arm, fully assembled
• Right front lower trailing arm, fully assembled
• SuperPro polyurethane bushings installed
• Adjustment hardware for pinion angle correction
• Installation instructions

Ideal For:

This trailing arm set is ideal for Jeep Wrangler JK owners who have lifted their vehicles up to 4 inches and want to restore or enhance suspension geometry for better on-road handling and off-road durability. It suits off-road enthusiasts, daily drivers, and anyone seeking a reliable, adjustable suspension upgrade that reduces drivetrain vibration and improves steering precision.

Fitment Summary

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

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.