• 25 Clutch59
• 26 Manual transmission391
• 27 Automatic transmission91
• 28 Transfer case2
• 29 Pedal assembly16
• 31 Frame, trailer operation44
• 32 Suspension28
• 33 Front axle53
• 35 Rear axle162
• 40 Wheels, chassis alignment check35
• 41 Propeller shaft15
• 42 Brakes - hydraulic and mechanical systems29
• 43 Brakes - pneumatic system and auxiliary brakes35
• 46 Steering87
• 54 Electrical system, equipment and instruments8
• 55 Auxiliary drive systems, hydraulic and linkage systems1
• 57 Central lubrication system2