Someone will correct me if I'm wrong but I believe the G.M. axles of this vintage have axle shafts that spline into the hub with a metal cover over the end the hub where Eaton axle will have a flat flange that attaches to hub with studs & nuts.
BC 1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc 1949 GMC 250 project in waiting 1960 C60 pasture art Retired GM dealer tech. 1980 - 2022