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: function model: transmission technology, 5-gear front transmission sprag-type clutch, automatic transmission Rear axle differential (electronic traction system) A-class AMG transmission technique: 5-gear transmission