Jeep JK Gear Set - Yukon Gear & Axle - High Performance, Reverse Pinion, 4.88 Ratio - `07-`18 is a direct-fit ring and pinion set designed for the Dana 30 front axle of Jeep Wrangler JK models (2007–2018). This Yukon high-performance kit is built to handle increased torque and larger tire setups while maintaining reliable fitment to OEM specifications.

Yukon Gear & Axle engineers the ring and pinion with advanced heat treatment and controlled gear tooth surface finish to reduce friction and heat under load. The short reverse pinion design matches reverse-rotation Dana Spicer 30 front applications found on JKs, and the 4.88 ratio delivers improved acceleration and crawl performance for off-road and heavy-duty street use. Manufactured from high-grade steel, this set is tested in Yukon’s quality labs and comes with a one-year warranty; Yukon also offers the optional Y.E.S. Plan for lifetime coverage while you own the vehicle. The gears are made for quiet running and straightforward setup when installed to proper specifications.

Features

• 4.88 final drive ratio optimized for larger tires and added torque
• Short reverse pinion for Dana Spicer 30 front axle (Jeep JK 2007–2018)
• 24-spline pinion with 7.33" ring gear diameter and 10 ring gear bolts
• High-grade steel construction with precision tooth finish to reduce friction and heat
• Engineered and tested by Yukon with a one-year manufacturer warranty; Y.E.S. Plan available

If you have questions or want help confirming fitment for your build, call us directly — we can advise on gear selection, installation, and customization. We offer on-site installation and customization at our two locations in Austin, Texas and the Los Angeles, California area. 512-982-9393 (TX) • 562-981-6800 (CA)

Thinking about purchasing multiple items? Contact us for possible shipping discounts. We install on premises at both locations.

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