Navistar chassis (GM 4500HD)
Reference: Dana Spicer AXIP-1000-32021March 2021
Dana Super 60 M256 Pinion Yoke 28 Spline 1550 Series
Dana Super 60 M256 Ring and Pinion High Pinion 4.88 Thin 4.56 and Up Carrier
Dana Super 60 M256 Short Pinion Ring and Pinion High Pinion 4.30