• 25 Clutch44
• 26 Manual transmission168
• 27 Automatic transmission2
• 28 Transfer case1
• 29 Pedal assembly17
• 31 Frame, trailer operation7
• 32 Suspension27
• 33 Front axle121
• 35 Rear axle113
• 40 Wheels, chassis alignment check18
• 41 Propeller shaft5
• 42 Brakes - hydraulic and mechanical systems180
• 43 Brakes - pneumatic system and auxiliary brakes13
• 46 Steering92
• 54 Electrical system, equipment and instruments39
• 55 Auxiliary drive systems, hydraulic and linkage systems1