- 25 Clutch10
- 26 Manual transmission20
- 28 Transfer case4
- 29 Pedal assembly1
- 31 Frame, trailer operation1
- 32 Suspension16
- 33 Front axle6
- 35 Rear axle40
- 40 Wheels, chassis alignment check8
- 41 Propeller shaft3
- 42 Brakes - hydraulic and mechanical systems81
- 43 Brakes - pneumatic system and auxiliary brakes1
- 46 Steering12
- 55 Auxiliary drive systems, hydraulic and linkage systems1