The Yukon Mighty axle seal is specified for 1969–1973 Ford Mustang applications using a Ford 9 in. axle with a 1.5 in. shaft diameter. It employs current design and manufacturing approaches to deliver a precision fit that seals reliably and endures service. The seal is intended as a rear axle replacement where Ford 9 in. geometry and 31-spline compatibility are required.
Yukon Gear 9in 31Spline (69-73Mustang & Others) Axle Seal