Revolution Gear & Axle 4.88 Ratio Gear Package w/ Timken Bearing: Jeep Wrangler JK (07-18) / Grand Cherokee (05-10)

Revolution Gear & Axle Gear Package

2005–2010 Jeep Grand Cherokee / 2007–2018 Jeep Wrangler JK

REV-JK-RUB-488

Overview:

The Revolution Gear & Axle 4.88 Ratio Gear Package with Timken Bearing is engineered specifically for Jeep enthusiasts seeking enhanced off-road performance and durability. Designed to fit 2007–2018 Jeep Wrangler JK models and 2005–2010 Jeep Grand Cherokee vehicles, this gear set provides an optimal balance of torque multiplication and drivability. Ideal for those upgrading tires or seeking improved crawling ability, this package ensures reliable power delivery and long-lasting performance under demanding conditions.

Featuring premium Timken bearings, the gear package reduces friction and heat buildup, contributing to smoother operation and extended component life. Whether you’re tackling rugged trails or upgrading your drivetrain for better overall performance, this gear package offers a precise fit and dependable quality from Revolution Gear & Axle.

Key Features:

This 4.88 ratio gear package is packed with features that enhance your Jeep’s drivetrain capabilities:

• Optimized 4.88 gear ratio for improved torque and off-road crawling power
• Includes high-quality Timken bearings for superior durability and reduced friction
• Precision-machined gears for exact tooth pattern and smooth meshing
• Compatible with 2007–2018 Jeep Wrangler JK and 2005–2010 Jeep Grand Cherokee models
• Designed to handle increased stress from larger tires and lifted suspensions
• Manufactured to meet or exceed OEM specifications for reliable fitment
• Enhances drivetrain efficiency and power transfer under load
• Corrosion-resistant finish for long-term protection in harsh environments

Construction & Design:

The Revolution Gear & Axle 4.88 Ratio Gear Package is built using premium-grade alloy steel, heat-treated for maximum strength and wear resistance. The gears undergo a precise manufacturing process including CNC machining and controlled heat treatment to ensure optimal hardness and durability. Timken bearings included in the package are renowned for their high load capacity and smooth operation, reducing friction and heat generation during use.

The gear teeth are carefully cut and lapped to achieve a perfect tooth pattern, minimizing noise and vibration while maximizing power transfer efficiency. This attention to detail in construction guarantees a robust and reliable gear set capable of withstanding the rigors of off-road driving and heavy-duty applications.

Installation & Fitment:

This gear package is designed for direct fitment on 2007–2018 Jeep Wrangler JK and 2005–2010 Jeep Grand Cherokee models, ensuring a straightforward installation process when paired with compatible axle assemblies. Professional installation is recommended to achieve proper gear mesh and preload settings, which are critical for optimal performance and longevity.

No major modifications are required, but proper setup including bearing preload and backlash adjustment is essential. This package is ideal for those upgrading their drivetrain to accommodate larger tires or seeking improved torque multiplication for off-road use.

What's Included:

• Ring gear and pinion gear set with 4.88 ratio
• Timken bearings for both ring and pinion
• Installation hardware as required
• Detailed installation instructions

Ideal For:

This gear package is perfect for Jeep Wrangler JK and Grand Cherokee owners who are upgrading their vehicles for enhanced off-road capability, especially those running larger tires or lifted suspensions. It suits enthusiasts seeking improved torque delivery, better crawling performance, and a durable drivetrain setup that can handle demanding trail conditions and heavy loads.