The G.M. corp axle will have a round cover on the rear & the carrier bolt into the same shape opening in the front of the axle housing. Dana / Spicer axles have a 10 bolt cover with straight vertical sides.
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