• 25 Clutch9
• 26 Manual transmission104
• 27 Automatic transmission3
• 28 Transfer case1
• 31 Frame, trailer operation1
• 32 Suspension8
• 33 Front axle103
• 35 Rear axle43
• 40 Wheels, chassis alignment check7
• 41 Propeller shaft3
• 42 Brakes - hydraulic and mechanical systems52
• 43 Brakes - pneumatic system and auxiliary brakes3
• 46 Steering85
• 54 Electrical system, equipment and instruments9