Yukon Dana 30 Jeep JK Ring & Pinion - Rev. Rotation, Short Pinion, 24 Spline
YUKYG D30SR-373JK
The Yukon Dana 30 Jeep JK Ring & Pinion Gear Set is designed specifically for Jeep JK front Dana 30 axles using a reverse rotation short pinion, 24-spline configuration. Ring and pinion upgrades are one of the most effective ways to restore drivability after tire size changes or improve low-speed torque and throttle response. It is commonly selected for mild tire upgrades, daily-driven JK builds, and vehicles seeking stronger performance than taller factory ratios without excessive cruising RPM.
Includes:
- Dana 30 Jeep JK Ring Gear
- Matching Short Pinion
- Available Gear Ratios: 3.73, 4.11, 4.56, 4.88, & 5.13
Sold as a matched gear set
Installation kit, bearings, shims, seals, and carrier components sold separately unless noted.
Specifications
- Brand: Yukon Gear & Axle
- Product Type: Ring & pinion gear set
- Application: Dana 30 Jeep JK front axle
- Available Gear Ratios: 3.73, 4.11, 4.56, 4.88, & 5.13
- Pinion Style: Reverse short pinion
- Pinion Spline Count: 24-spline
- Cover Bolt Count: 10 bolts
- Axle Position: Front
- Quantity: Sold as a matched set
Fitment
- Fits Jeep JK Wrangler Dana 30 front axles using reverse short pinion design
- 24-spline pinion applications
- Ideal for re-gearing after tire upgrades, front axle rebuilds, or matched front/rear ratio changes
- Verify axle tag, spline count, carrier break, and rear axle ratio before ordering.
Tech Insight
Dana 30 JK front axles use a reverse rotation gear set designed for front-drive applications. Reverse-cut gears provide proper tooth loading when installed in the front axle and cannot be replaced with standard-cut gears. For larger tires or heavier builds, deeper ratios may be preferred.
Correct installation requires precise pinion depth, backlash, preload, and tooth pattern setup to maximize gear life and minimize noise.
