Jeep Wrangler JK Rear Upper Adjustable Control Arms — 2007–2018 (Rough Country X-Flex Joint)

If you’ve lifted your Jeep Wrangler JK and want to lock in precise geometry, these Rough Country Rear Upper Adjustable Control Arms are the upgrade you need. They’re engineered to correct caster and pinion angles after a suspension lift, giving you predictable steering, improved stability, and better traction both on the road and across rugged terrain.

Built around Rough Country’s innovative X-Flex Joint system, these arms combine rugged construction with real-world adjustability. The 2.5-inch diameter body delivers hefty strength where it matters, while the 1.25-inch threaded adjusters let you dial in exact length to restore proper alignment after lifting your JK. The upper joints pivot up to 20 degrees, expanding articulation on the trail without binding or fighting the suspension. And because the joints are fully greaseable, you can maintain peak performance mile after mile in harsh off-road conditions.

• Fits 2007–2018 Jeep Wrangler JK (2-door and 4-door Unlimited)
• Adjustable length to correct geometry after lift installation
• X-Flex joints pivot up to 20 degrees for improved articulation
• 2.5-inch diameter heavy-duty body construction for increased rigidity
• 1.25-inch threads provide precise, durable adjustment
• Fully greaseable joints for long-term upkeep
• Compatible with both 2WD and 4WD JK models

Why this matters in real-world use: after a lift, many JKs experience altered caster and pinion angles that can compromise steering feel, cause driveline vibrations, or reduce axle articulation. These control arms are purpose-built to restore correct geometry, delivering confident on-road handling and improved wheel contact on technical trails. The result is a more linear steering response, better acceleration feel, and less drivetrain bind when you crawl over obstacles or flex through rock gardens.

For the off-road enthusiast who values precise setup and durability, these arms offer a tangible upgrade over non-adjustable alternatives. The rugged 2.5" diameter body resists bending under load, while the 20° joint travel maintains alignment as you articulate off-road—meaning you’ll spend less time fighting the suspension and more time enjoying the ride.

Magwarehouse.com is proud to be the official Rough Country importer in New Zealand. We stock these arms ready to ship from our Manukau workshop. No appointment is needed to drop by, or call 09 250 1803 to discuss fitment for your JK build and confirm the best length for your lift height.