Pinion Yokes 1980-1997 Ford Rear DS

Ford introduced the Ford Sterling 10.25" Corporate rear axle in 1985 for both single and dual rear wheel F-250 and F-350 applications to replace Dana 60, Dana 61, and Dana 70 rear axles which were phased out during the 1985 model year. For the entire production life of the 10.25" rear axle, only two u-joint sizes were used, however the length of the pinion splines was changed for the 1993* model year to address excessive pinion yoke spline wear issues.

*Some late 1992 trucks may also have the longer spline pinion yoke