The Yukon ring-and-pinion gear set for Ford 9.00-inch axles (4.30 ratio) is an OEM-style replacement featuring precision tooth finishing to limit friction and heat. Yukon applies advanced heat-treating and quality testing and supports the set with its Y.E.S. Plan lifetime protection. Specifications list a 9.00" ring gear diameter, 10 ring bolts and a 28-spline pinion for direct Ford 9" installation.
Yukon Gear High Performance Gear Set For Ford 9in in a 4.30 Ratio