Yukon Gear & Axle YG F9-389 Ring and Pinion Gear Set 3.89 Ratio Ford 9 Inch

The Yukon Gear & Axle YG F9-389 is a high-performance ring and pinion gear set engineered specifically for Ford 9-inch rear differentials with a 3.89:1 gear ratio. This ratio provides an excellent balance between acceleration and highway cruising, making it ideal for street performance, off-road applications, and track use.

Key Features:

• Precision-engineered 3.89:1 gear ratio for Ford 9-inch differentials
• Manufactured using advanced CNC machining and heat-treating processes for maximum strength and durability
• Designed with optimized tooth contact patterns for quiet operation and reduced wear
• Engineered to handle high-torque applications in street, off-road, and racing conditions
• Easy installation with straightforward setup procedures
• Backed by Yukon's one-year manufacturer warranty

Yukon Gear & Axle ring and pinion sets are built to withstand the most demanding conditions. Whether you're building a street machine, rock crawler, or drag car, this gear set delivers the reliability and performance you need. The precision manufacturing ensures proper gear mesh and long service life when installed correctly with appropriate installation components.