RockJock JK Johnny Joint Rear Trac Bar 1.25in Chromoly Adjustable — Fits 2007-2018 Jeep Wrangler JK

SKU: ROKCE-9120RJK
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Sale price$387.81
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About RockJock

RockJock engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full RockJock lineup with fast shipping and expert fitment support — order with confidence.

Precision Handling with RockJock JK Johnny Joint Rear Trac Bar

Upgrade your 2007-2018 Jeep JK's rear suspension with the RockJock Johnny Joint Adjustable Rear Trac Bar. This meticulously engineered trac bar features precise bends, ensuring a perfect, hassle-free fit for your vehicle. Whether your JK is stock, equipped with RockJock's Off Road Suspension System, or somewhere in between, this trac bar is designed to integrate seamlessly and improve performance.

Robust Construction for Off-Road Demands

Crafted from high-strength 1.250-inch o.d. x .250-inch wall 4130 chrome moly steel tubing, this trac bar is built to withstand the rigors of aggressive off-road driving. It incorporates a heavy-duty urethane bushing on the frame end for durability and reduced deflection. The other end features a custom 1-inch RH thread forged 2-inch diameter Johnny Joint greasable rod end, complete with a jam nut, allowing for precise adjustability and superior articulation. The arm is finished in a semi-gloss black powder coat for lasting protection and a clean look, while the forged Johnny Joint end boasts a gold zinc plating. Enhance your Jeep JK's stability and control with this premium upgrade from GGCRACING.

Vehicle Fitment

Years Make Model Trim
2007-2010 Jeep Wrangler Unlimited X
2007-2010 Jeep Wrangler X
2007-2017 Jeep Wrangler Unlimited Rubicon
2007-2017 Jeep Wrangler Unlimited Sahara
2007-2017 Jeep Wrangler Rubicon
2007-2017 Jeep Wrangler Sahara
2010-2017 Jeep Wrangler Unlimited Sport
2010-2017 Jeep Wrangler Sport
2011 Jeep Wrangler 70th Anniversary
2011 Jeep Wrangler Unlimited 70th Anniversary
2016 Jeep Wrangler Unlimited Sport S
2016 Jeep Wrangler 75th Anniversary
2016 Jeep Wrangler Sport S
2018 Jeep Wrangler JK Sahara
2018 Jeep Wrangler JK Sport
2018 Jeep Wrangler JK Unlimited Rubicon
2018 Jeep Wrangler JK Unlimited Sahara
2018 Jeep Wrangler JK Unlimited Sport

Product Details

Product Description
Part Numbers
Sizing & Fit

About RockJock

RockJock engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full RockJock lineup with fast shipping and expert fitment support — order with confidence.

Precision Handling with RockJock JK Johnny Joint Rear Trac Bar

Upgrade your 2007-2018 Jeep JK's rear suspension with the RockJock Johnny Joint Adjustable Rear Trac Bar. This meticulously engineered trac bar features precise bends, ensuring a perfect, hassle-free fit for your vehicle. Whether your JK is stock, equipped with RockJock's Off Road Suspension System, or somewhere in between, this trac bar is designed to integrate seamlessly and improve performance.

Robust Construction for Off-Road Demands

Crafted from high-strength 1.250-inch o.d. x .250-inch wall 4130 chrome moly steel tubing, this trac bar is built to withstand the rigors of aggressive off-road driving. It incorporates a heavy-duty urethane bushing on the frame end for durability and reduced deflection. The other end features a custom 1-inch RH thread forged 2-inch diameter Johnny Joint greasable rod end, complete with a jam nut, allowing for precise adjustability and superior articulation. The arm is finished in a semi-gloss black powder coat for lasting protection and a clean look, while the forged Johnny Joint end boasts a gold zinc plating. Enhance your Jeep JK's stability and control with this premium upgrade from GGCRACING.

Vehicle Fitment

Years Make Model Trim
2007-2010 Jeep Wrangler Unlimited X
2007-2010 Jeep Wrangler X
2007-2017 Jeep Wrangler Unlimited Rubicon
2007-2017 Jeep Wrangler Unlimited Sahara
2007-2017 Jeep Wrangler Rubicon
2007-2017 Jeep Wrangler Sahara
2010-2017 Jeep Wrangler Unlimited Sport
2010-2017 Jeep Wrangler Sport
2011 Jeep Wrangler 70th Anniversary
2011 Jeep Wrangler Unlimited 70th Anniversary
2016 Jeep Wrangler Unlimited Sport S
2016 Jeep Wrangler 75th Anniversary
2016 Jeep Wrangler Sport S
2018 Jeep Wrangler JK Sahara
2018 Jeep Wrangler JK Sport
2018 Jeep Wrangler JK Unlimited Rubicon
2018 Jeep Wrangler JK Unlimited Sahara
2018 Jeep Wrangler JK Unlimited Sport

Product Details

Product Description

About RockJock

RockJock engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full RockJock lineup with fast shipping and expert fitment support — order with confidence.

Precision Handling with RockJock JK Johnny Joint Rear Trac Bar

Upgrade your 2007-2018 Jeep JK's rear suspension with the RockJock Johnny Joint Adjustable Rear Trac Bar. This meticulously engineered trac bar features precise bends, ensuring a perfect, hassle-free fit for your vehicle. Whether your JK is stock, equipped with RockJock's Off Road Suspension System, or somewhere in between, this trac bar is designed to integrate seamlessly and improve performance.

Robust Construction for Off-Road Demands

Crafted from high-strength 1.250-inch o.d. x .250-inch wall 4130 chrome moly steel tubing, this trac bar is built to withstand the rigors of aggressive off-road driving. It incorporates a heavy-duty urethane bushing on the frame end for durability and reduced deflection. The other end features a custom 1-inch RH thread forged 2-inch diameter Johnny Joint greasable rod end, complete with a jam nut, allowing for precise adjustability and superior articulation. The arm is finished in a semi-gloss black powder coat for lasting protection and a clean look, while the forged Johnny Joint end boasts a gold zinc plating. Enhance your Jeep JK's stability and control with this premium upgrade from GGCRACING.

Vehicle Fitment

Years Make Model Trim
2007-2010 Jeep Wrangler Unlimited X
2007-2010 Jeep Wrangler X
2007-2017 Jeep Wrangler Unlimited Rubicon
2007-2017 Jeep Wrangler Unlimited Sahara
2007-2017 Jeep Wrangler Rubicon
2007-2017 Jeep Wrangler Sahara
2010-2017 Jeep Wrangler Unlimited Sport
2010-2017 Jeep Wrangler Sport
2011 Jeep Wrangler 70th Anniversary
2011 Jeep Wrangler Unlimited 70th Anniversary
2016 Jeep Wrangler Unlimited Sport S
2016 Jeep Wrangler 75th Anniversary
2016 Jeep Wrangler Sport S
2018 Jeep Wrangler JK Sahara
2018 Jeep Wrangler JK Sport
2018 Jeep Wrangler JK Unlimited Rubicon
2018 Jeep Wrangler JK Unlimited Sahara
2018 Jeep Wrangler JK Unlimited Sport

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