• 25 Clutch46
• 26 Manual transmission489
• 27 Automatic transmission46
• 28 Transfer case1
• 29 Pedal assembly13
• 31 Frame, trailer operation45
• 32 Suspension49
• 33 Front axle53
• 35 Rear axle143
• 40 Wheels, chassis alignment check33
• 41 Propeller shaft15
• 42 Brakes - hydraulic and mechanical systems30
• 43 Brakes - pneumatic system and auxiliary brakes9
• 46 Steering104
• 54 Electrical system, equipment and instruments7
• 55 Auxiliary drive systems, hydraulic and linkage systems4
• 57 Central lubrication system3