Revolution Gear & Axle 03-06 Jeep Wrangler TJ Rubicon Dana 44 Thick F+R Koyo 5.13 Ratio Gear Package

This Revolution Gear & Axle package is for 2003-2006 Jeep Wrangler TJ Rubicon models equipped with the Dana 44 rear axle. It includes a set of thick cut ring and pinion gears with a 5.13 ratio, designed to work with both front and rear differentials. This gear set is specifically intended for Rubicon models, which feature the stronger Dana 44 axle. The 5.13 ratio is a popular choice for TJ Rubicon owners who have installed larger tires, typically 35 inches or more, helping to restore lost acceleration and drivability. This ratio is also beneficial for off-road use, providing better control in technical terrain.

Revolution Gear & Axle uses Koyo bearings in this package, known for their solid construction and reliability. Koyo is a well-regarded manufacturer in the drivetrain industry, and their bearings are built to handle the stresses of daily driving and off-road adventures. The 'thick cut' design of these gears means they have a slightly different tooth profile compared to standard gears, which can offer improved strength and durability under load. This is particularly important when re-gearing for larger tires, as it helps to ensure the gears can withstand the increased torque and stress. Proper installation is crucial for any gear set, and this package is designed to be a complete solution for re-gearing your Rubicon's differentials.

When installing this gear set, it's important to follow the manufacturer's break-in procedure carefully. This typically involves a period of moderate driving with specific speed and load limitations, followed by an oil change. This process allows the new gear teeth to properly mate and wear in, ensuring long-term performance and durability. This package includes the ring and pinion gears and Koyo bearings, but you will need to source other installation components such as installation kits (which include pinion seals, gaskets, shims, and crush sleeves) and differential fluid separately. Ensure you have the correct tools and knowledge for differential work, or consider professional installation to get the most out of this upgrade.