Abstract: A differential axle embodying a differential assembly mounted in a housing arrangement formed of, preferably, die cast aluminum parts and consisting of a central housing portion in which a differential is mounted and tubular portions connected to the sides thereof and extending laterally therefrom and within which the drive axles rotate. The differential unit forming a portion of the assembly consists of a differential carrier which is divided into two parts, with one part having the ring gear of the differential integral therewith and with each part of the differential carrier having hub portions which are heat treated and form the inner races of antifriction bearings which rotatably support the differential carrier within the centrl housing portions.