Description Additional Info Product Reviews Nodular Daytona style pinion support, Heavy Duty, includes races 9" Ford.Nodular ironLarger inner pinion bearing reduces gear deflection under high loadFits Ford 9" with 28 spline pinion Cross References:YPF9PS4 Mfr Part Number: YP F9PS-4 Sub-brand: Yukon Gear Product Warranty: 1