Revolution Gear & Axle D44RS-488RUB 4.88 Ratio Ring & Pinion for 2007-2018 Jeep

Vehicle Fitment

• 2007-2018 Jeep Wrangler JK Rubicon (2-Door & Unlimited 4-Door, 3.8L V6 / 3.6L V6, 4WD, front Dana 44 reverse-rotation axle) - Fitment confirmed through 2018. Coverage for 2019+ unconfirmed.

Features

• 4.88 final drive ratio optimized for oversized tyres and aggressive off-road or trail use
• Precision-machined ring & pinion gear set built to OEM-style tolerances
• Made from high-grade alloy steel and precision heat-treated for durability
• Specifically designed for the front Dana 44 reverse-rotation differential of the JK Rubicon
• Improves low-end torque, throttle response and driveline control when lifting or upgrading tyres
• Quiet operation with minimal gear whine due to engineered gear pattern and precision setup
• Ideal for both on-road and off-road conditions - trail ready and street safe
• Backed by a 2-year limited warranty against manufacturing defects

Specifications

• Gear ratio: 4.88
• Ring gear rotation: Reverse (front axle reverse-rotation configuration)
• Pinion splines: 24 splines (standard for JK front Dana 44)
• Ring gear diameter: approx. 8.5"
• Axle position: Front only (Dana 44 reverse-rotation)
• Drivetrain: 4WD - front differential of JK Rubicon
• Material: Heat-treated alloy steel
• Warranty: 2-year limited warranty

Included Components

• 1x Ring gear
• 1x Pinion gear
• Ring gear bolts **not included** - reuse factory bolts or purchase separately

Product Description

The Revolution Gear & Axle D44RS-488RUB 4.88 Ratio Ring & Pinion set is engineered for the front differential of the 2007-2018 Jeep Wrangler JK Rubicon with the factory Dana 44 reverse-rotation axle. If you've installed oversized tyres, a suspension lift or require stronger front axle performance for off-road or heavy-duty use, this gear ratio boosts low-end torque and engine responsiveness while preserving driveline reliability.

Installation involves removal of the front differential carrier, proper setup of backlash, gear pattern and preload. This kit is a front-axle specific upgrade and is not for rear or standard-rotation axles. Fitment is confirmed for JK Rubicon models through 2018; 2019-on coverage is not confirmed at time of listing. Always verify your vehicle's axle type, rotation and gear ratio before purchasing.