• 25 Clutch6
• 26 Manual transmission48
• 27 Automatic transmission8
• 28 Transfer case13
• 29 Pedal assembly6
• 31 Frame, trailer operation5
• 32 Suspension6
• 33 Front axle31
• 35 Rear axle37
• 40 Wheels, chassis alignment check14
• 41 Propeller shaft3
• 42 Brakes - hydraulic and mechanical systems5
• 43 Brakes - pneumatic system and auxiliary brakes1
• 46 Steering43
• 54 Electrical system, equipment and instruments14
• 55 Auxiliary drive systems, hydraulic and linkage systems8