Revolution REV-JK-RUB-488-K Dana 44 4.88 Ratio Gear Package with Koyo Bearings

The Revolution REV-JK-RUB-488-K is a complete gear package designed for Jeep Wrangler JK Rubicon Dana 44 front and rear axles. This comprehensive kit includes front and rear 4.88 ratio ring and pinion gear sets plus master overhaul bearing kits with premium Koyo bearings, providing everything needed for a complete differential re-gear.

High-Quality Construction:

• Manufactured from heat-treated 8620 steel to precise OEM specifications
• Double and triple lapped gears for flawless setup and quiet operation
• Premium Koyo bearings and National seals for superior durability
• 24-spline pinion gears for Dana 44 front (reverse cut) and rear applications

Complete Master Overhaul Kits Include:

• Pinion seal and pinion nut
• Pinion shims and carrier shims
• Preload shims or crush sleeve
• Ring gear bolts with Loctite
• Gasket or sealant
• Gear marking compound

Performance Benefits:

• Optimized 4.88 gear ratio ideal for 35-37 inch tires
• Improved low-end torque and enhanced traction control
• Better towing performance with increased torque at lower speeds
• Restores power lost from larger tire installations
• Quiet operation without gear whine

Revolution Gear and Axle products are backed by a 2-year warranty against manufacturing defects. With over 40 years of manufacturing experience and thousands of units sold, Revolution Gear has been proven in street, off-road, and race applications. Professional installation is recommended for optimal setup and performance.