Yukon Gear & Axle YG F7.5-345 Ring and Pinion Gear Set Ford 7.5in 3.45 Ratio

The Yukon Gear & Axle YG F7.5-345 is a high-performance ring and pinion gear set designed for the Ford 7.5-inch differential in a 3.45 gear ratio. Built to handle the demands of street driving, towing, off-road use, and track performance, this gear set delivers the strength and precision needed for a reliable differential upgrade.

Yukon engineers the gear tooth surface finish to reduce friction and heat, using high-grade steel in both the ring and pinion, with fitment designed to OEM specifications. Advanced heat-treating techniques and leading-edge quality testing processes ensure the structure and surface finish meet exacting standards for long-term durability and quiet operation.

Key Features:

• 3.45 gear ratio for the Ford 7.5-inch axle
• High-grade steel construction in both ring and pinion
• Engineered gear tooth surface finish to minimize friction and heat buildup
• Designed to OEM fitment specifications for straightforward installation
• Quiet running design using the latest manufacturing technologies
• Compatible with a wide range of Ford, Lincoln, Mercury, and Mazda applications
• Comes standard with a one-year warranty
• Eligible for the optional Yukon Y.E.S. lifetime protection plan

Upgrading your differential gear ratio is essential when increasing tire size or adding significant horsepower. Selecting the correct ratio helps restore acceleration, reduce drivetrain stress, and improve overall efficiency. A master overhaul kit (sold separately) is recommended to complete the differential rebuild with fresh bearings, seals, and shims.