Revolution Gear & Axle 03-06 Jeep Wrangler TJ Dana 44 Thick Rear Koyo 5.13 Ratio Gear Package

Revolution Gear & Axle is known for providing robust drivetrain components, and this 5.13 ratio gear package for your 2003-2006 Jeep Wrangler TJ's Dana 44 rear axle is a prime example. If you've upgraded to larger tires or are looking to improve your Jeep's performance off-road or on steep inclines, changing your ring and pinion gears is a critical step. A lower numerical ratio like 5.13 helps bring your engine's RPM back into its optimal power band, compensating for the increased rotational resistance of larger tires and making your Jeep feel more responsive.

This package includes a set of thick ring and pinion gears designed specifically for the Dana 44 axle found in later model TJ Wranglers. The 'thick' designation means these gears have a slightly increased pinion offset, which can be beneficial for certain axle housing modifications or when dealing with specific pinion angles. You'll also find a complete set of Koyo bearings included. Koyo is a well-regarded manufacturer of bearings, known for their durability and smooth operation, which are essential for the longevity and performance of your differential.

When installing a new gear set, it's important to follow the manufacturer's break-in procedure carefully. This typically involves a period of moderate driving with specific heat cycles to properly seat the new gear teeth. This package is designed to be a comprehensive solution for upgrading your rear differential gearing, ensuring you have the necessary components for a proper installation.