• 25 Clutch42
• 26 Manual transmission237
• 27 Automatic transmission5
• 28 Transfer case1
• 29 Pedal assembly15
• 31 Frame, trailer operation44
• 32 Suspension28
• 33 Front axle53
• 35 Rear axle163
• 40 Wheels, chassis alignment check34
• 41 Propeller shaft14
• 42 Brakes - hydraulic and mechanical systems29
• 43 Brakes - pneumatic system and auxiliary brakes32
• 46 Steering87
• 54 Electrical system, equipment and instruments6
• 55 Auxiliary drive systems, hydraulic and linkage systems1
• 57 Central lubrication system2