• 25 Clutch14
• 26 Manual transmission62
• 28 Transfer case1
• 31 Frame, trailer operation1
• 32 Suspension5
• 33 Front axle32
• 35 Rear axle60
• 40 Wheels, chassis alignment check6
• 41 Propeller shaft3
• 42 Brakes - hydraulic and mechanical systems53
• 43 Brakes - pneumatic system and auxiliary brakes1
• 46 Steering85
• 54 Electrical system, equipment and instruments7
• 55 Auxiliary drive systems, hydraulic and linkage systems1