• 25 Clutch55
• 26 Manual transmission585
• 27 Automatic transmission6
• 28 Transfer case10
• 29 Pedal assembly24
• 31 Frame, trailer operation7
• 32 Suspension33
• 33 Front axle68
• 35 Rear axle190
• 40 Wheels, chassis alignment check19
• 41 Propeller shaft8
• 42 Brakes - hydraulic and mechanical systems183
• 43 Brakes - pneumatic system and auxiliary brakes12
• 46 Steering85
• 54 Electrical system, equipment and instruments45
• 55 Auxiliary drive systems, hydraulic and linkage systems1