A drive axle assembly includes first and second axleshafts and a drive mechanism coupling a driven input shaft to the axleshafts. The drive mechanism includes a differential assembly, a planetary gear assembly operably disposed between the differential assembly and the first axleshaft, a brake and first...http://www.google.co.uk/patents/US7503416?utm_source=gb-gplus-sharePatent US7503416 - Torque distributing drive mechanism with limited slip
