 The auxiliary gearbox had a neutral position which allowed the winch and a power take off to use the main gearbox gearing for variable speed operation.From the backbone tube the torque was transmitted to the wheels via Tatra gear differentials with differential locks, offset drive shafts and planetary hub reductions.Full triple circuit air "S" cam drum brakes acting on all wheels drums via slack adjuster, all brake cylinders were remotely vented.