<p>This invention relates to a differential assembly comprising; a differential housing (1); a differential pinion gear assembly including a pinion shaft, said pinion gears drivingly engaging corresponding bevel gears (3) to provide differential rotation; a speed detect gear (6) is configured to be push-fitted onto the differential housing (1); wherein, said differential assembly is of open type, said pinion shaft is firmly located within the said housing by means of a spring dowel (5).</p>
