• 25 Clutch104
• 26 Manual transmission100
• 27 Automatic transmission3
• 29 Pedal assembly9
• 31 Frame, trailer operation44
• 32 Suspension29
• 33 Front axle53
• 35 Rear axle127
• 40 Wheels, chassis alignment check34
• 41 Propeller shaft5
• 42 Brakes - hydraulic and mechanical systems30
• 43 Brakes - pneumatic system and auxiliary brakes31
• 46 Steering87
• 54 Electrical system, equipment and instruments12
• 55 Auxiliary drive systems, hydraulic and linkage systems1
• 57 Central lubrication system2