Front & Rear 4.88 Koyo Bearing Ring and Pinion Gear Package

Features:

• Front and rear 4.88 ring and pinion gears
• Includes premium Koyo bearing master install kits
• Precision heat-treated for superior strength
• Optimized gear ratio for towing and performance
• Improves torque delivery to the wheels
• Ideal for larger tires and heavy loads
• Reduces engine strain and enhances acceleration
• Maintains highway efficiency with proper gearing
• Made from high-quality 8620 steel
• Designed for Ford 10.25 and Dana 60 axles
• Engineered for smooth and quiet operation
• Backed by a 2-year warranty

Ultiamte Front and Rear Gear Package by Revolution

Having the right gear ratio can completely transform your truck’s performance, especially if you’ve added larger tires or haul heavy loads regularly. The Revolution Front & Rear 4.88 Koyo Bearing Ring and Pinion Gear Package is built to optimize torque delivery and improve drivability for 1993-2010 Ford F-250 models. Whether you’re towing, off-roading, or just looking to restore lost power, this kit provides everything you need to upgrade both the front and rear differentials in one complete package. The 4.88 ratio is ideal for trucks running oversized tires, as it helps restore powerband efficiency and acceleration that can be lost with taller rubber. Compared to stock gearing, this ratio improves low-end torque, making it easier to tow and climb steep grades without excessive strain on the engine. It also helps maintain better RPM control on the highway, preventing unnecessary downshifting and improving overall efficiency. If you’ve noticed sluggish acceleration or excessive strain while pulling heavy loads, stepping up to 4.88s will make a significant difference.

Master Install Kit with Premium Koyo bearings

Manufactured from premium 8620 steel and precision heat-treated for strength, Revolution Gear’s ring and pinion sets are built to handle extreme conditions without sacrificing quiet operation. This kit also includes a complete master install package featuring Koyo bearings, one of the most trusted names in the industry for durability and precision. Every component is designed to provide a seamless installation, from shims and seals to ring gear bolts and gear marking compound. Upgrading both front and rear gears at the same time ensures balanced performance, preventing drivetrain binding and maximizing the benefits of a properly matched gear ratio.

Fits: 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Ford F250