• 25 Clutch20
• 26 Manual transmission51
• 27 Automatic transmission42
• 28 Transfer case1
• 29 Pedal assembly6
• 31 Frame, trailer operation28
• 32 Suspension38
• 33 Front axle44
• 35 Rear axle5
• 40 Wheels, chassis alignment check88
• 41 Propeller shaft2
• 42 Brakes - hydraulic and mechanical systems115
• 43 Brakes - pneumatic system and auxiliary brakes16
• 46 Steering40
• 54 Electrical system, equipment and instruments461
• 55 Auxiliary drive systems, hydraulic and linkage systems5