The Yukon ring-and-pinion gear set for 2011-and-up Ford 9.75-inch axles (4.11 ratio) is an OEM-fit final-drive replacement engineered with precision tooth finish to reduce friction and heat. Yukon applies advanced heat-treating and rigorous testing and supports the set with its Y.E.S. Plan lifetime protection. Key specs list a 9.75" ring gear, 12 ring bolts and a 31-spline pinion for 2011-and-up applications.
Yukon Gear High Performance Gear Set For 11+ Ford 9.75in in a 4.11 Ratio