Shop now for Differentials and Differential Parts for 1988-1998 Ford F350 Dual Rear Wheel Trucks with Dana-Spicer Model 80 Rear Axles. Great selection. In stock. Quick shipping.
When first introduced in the 1988 Ford Super Duty F-350, the Dana 80 Dual Rear Wheel (DRW) axle used 35 spline axle shafts. Effective with the 1990 model year, the axle spline size for Super Duty trucks was increased and the number of splines increased to 37. The 37 spline axle shaft was used on 1990-1991 F-350 models.














