Description
Upgrade your Jeep Wrangler JK's suspension with the SuperPro Heavy-Duty Adjustable Rear Lower Control Arm Set (sprTRC1187). Designed for lifted Jeep Wrangler JK vehicles, this adjustable suspension kit helps correct rear pinion angles while improving suspension performance, durability, and handling on and off the road.
Constructed with tubular steel arms and supplied with SuperPro polyurethane bushings, these rear lower trailing arms provide a durable suspension upgrade for demanding driving conditions. The adjustable design allows for off-car adjustment to help correct pinion angles on lifted vehicles up to 4 inches.
This complete left- and right-hand rear lower control arm set comes fully assembled with SuperPro bushings for convenient installation. Engineered to deliver long-lasting durability and performance while minimizing unwanted noise, vibration, and harshness (NVH), these arms are suitable for Jeep owners seeking improved suspension geometry and off-road capability.
The SuperPro sprTRC1187 kit can be installed as a standalone suspension upgrade or combined with SuperPro heavy-duty adjustable rear upper control arms and adjustable front control arms for a more comprehensive suspension setup.
Developed and fully tested by SuperPro's Australian-based research and development team, these adjustable suspension arms offer a practical solution for lifted Jeep Wrangler JK applications.
Key Features and Benefits
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Heavy-duty adjustable rear lower trailing arm set.
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Includes left- and right-hand rear lower control arms.
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Tubular steel construction for strength and durability.
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SuperPro polyurethane bushings included.
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Fully assembled for convenient installation.
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Off-car adjustability for rear pinion angle correction.
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Designed for lifted vehicles with lift heights up to 4 inches.
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Helps improve suspension geometry and on-road and off-road performance.
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Engineered to minimize unwanted noise, vibration, and harshness (NVH).
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Developed and tested by SuperPro's Australian-based R&D team.
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Can be installed independently or combined with compatible SuperPro rear upper and front adjustable control arms.
Product Specifications
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Brand: SuperPro
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Part Number: sprTRC1187
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Product Type: Rear Lower Trailing Arm / Control Arm Assembly
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Suspension Position: Rear
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Arm Position: Lower
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Quantity: Set of 2 arms
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Adjustable: Yes
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Grade Type: Specialty
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Adjustment Type: Off-car adjustment
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Suspension Grade Type: Specialty
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Bushing Material: Polyurethane
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Bushings Included: Yes
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Control Arm Material: Polyurethane, as specified in the supplied product data
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Structural Material: Steel
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Construction: Tubular
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Pre-Assembled: Yes
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Set: Yes
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Installation Difficulty: Moderate
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Estimated Installation Time: 3 hours
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Wheel Alignment Required: Yes
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Designed Lift Height: Up to 4 inches
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Primary Functions: Rear pinion angle correction, suspension geometry adjustment, and improved on-road and off-road performance
Vehicle Fitment
The SuperPro sprTRC1187 rear lower adjustable control arm set is listed for the following Jeep Wrangler JK applications.
2007–2011 Jeep Wrangler
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2007–2011 Jeep Wrangler Rubicon, V6 3.8L (3,778 cc).
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2007–2011 Jeep Wrangler Sahara, V6 3.8L (3,778 cc).
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2007–2010 Jeep Wrangler X, V6 3.8L (3,778 cc).
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2010–2011 Jeep Wrangler Sport, V6 3.8L (3,778 cc).
2011 Jeep Wrangler 70th Anniversary
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2011 Jeep Wrangler 70th Anniversary, V6 3.8L (3,778 cc).
2012–2017 Jeep Wrangler
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2012–2017 Jeep Wrangler Rubicon, V6 3.6L (3,604 cc).
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2012–2017 Jeep Wrangler Sahara, V6 3.6L (3,604 cc).
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2012–2017 Jeep Wrangler Sport, V6 3.6L (3,604 cc).
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2016 Jeep Wrangler 75th Anniversary, V6 3.6L (3,604 cc).
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2016 Jeep Wrangler Sport S, V6 3.6L (3,604 cc).
2007–2011 Jeep Wrangler Unlimited
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2007–2011 Jeep Wrangler Unlimited Rubicon, V6 3.8L (3,778 cc).
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2007–2011 Jeep Wrangler Unlimited Sahara, V6 3.8L (3,778 cc).
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2007–2011 Jeep Wrangler Unlimited Sport, V6 3.8L (3,778 cc).
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2007–2010 Jeep Wrangler Unlimited X, V6 3.8L (3,778 cc).
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2011 Jeep Wrangler Unlimited 70th Anniversary, V6 3.8L (3,778 cc).
2012–2017 Jeep Wrangler Unlimited
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2012–2017 Jeep Wrangler Unlimited Rubicon, V6 3.6L (3,604 cc).
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2012–2017 Jeep Wrangler Unlimited Sahara, V6 3.6L (3,604 cc).
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2012–2017 Jeep Wrangler Unlimited Sport, V6 3.6L (3,604 cc).
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2016 Jeep Wrangler Unlimited 75th Anniversary, V6 3.6L (3,604 cc).
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2016 Jeep Wrangler Unlimited Sport S, V6 3.6L (3,604 cc).
2018 Jeep Wrangler JK
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2018 Jeep Wrangler JK Rubicon, V6 3.6L (3,604 cc).
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2018 Jeep Wrangler JK Sahara, V6 3.6L (3,604 cc).
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2018 Jeep Wrangler JK Sport, V6 3.6L (3,604 cc).
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2018 Jeep Wrangler JK Sport S, V6 3.6L (3,604 cc).
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2018 Jeep Wrangler JK Unlimited Rubicon, V6 3.6L (3,604 cc).
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2018 Jeep Wrangler JK Unlimited Sahara, V6 3.6L (3,604 cc).
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2018 Jeep Wrangler JK Unlimited Sport, V6 3.6L (3,604 cc).
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2018 Jeep Wrangler JK Unlimited Sport S, V6 3.6L (3,604 cc).
Fitment Note: Verify the vehicle's model year, trim, engine, and suspension configuration before ordering. Confirm compatibility with the vehicle's lift height and other suspension modifications.
Installation Information
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Installation Difficulty: Moderate
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Estimated Installation Time: 3 hours
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Wheel Alignment: Required after installation
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Installation Recommendation: Professional installation is recommended to ensure correct adjustment and suspension alignment.
California Proposition 65 Warning
WARNING: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.
Proposition 65 Applicable: Yes
