differential with lock (ASR, ASD) Demonstration: function of axle drive (pinion, crown wheel) function of differential spider gears locking by hydraulic piston and multiple-disks description ordernumber 1092 see also: suspension strut for two-wheel vehicles Rear axle differential (electronic traction system) A-class AMG Mercedes-Benz 7-speed automatic transmission (hybrid) Mercedes-Benz 7-gear dual clutch transmission 7G-DCT