... tanker L300ClutchModelGFX420, Single dry frictional disc,Hydraulic control and compressed air assistedGearbox Model5S-112GP, mechanism,9gears,1reverse ... brakeEngine exhaust brakePark brakePotential springs pressing on middle and rear wheelsSteering system (ZF company)ModelZF8098,whole ... shoe pneumatic brake, non-driving steering axle Middle and Rear axle (Mercedes Benz Technology)Double-shoe pneumatic ...