PARKING BRAKE

Fig. 1: Parking brake cable adjusting point for trucks through 1984

Fig. 2: Parking brake cable adjusting point for 1986 trucks

Fig. 3: Turn the adjuster nut to loosen or tighten the parking brake cable — 1986 model shown

Adjust the service brakes before attempting to adjust the parking brake.
Use the adjusting nut to adjust the length of the front cable so that the rear brakes are locked when the parking brake lever is pulled out:
- 1971–84: 5–10 notches
- 1986: 11–13 notches
After adjustment, apply the parking brake several times. Release the parking brake and make sure that the rear wheels rotate without dragging. If they drag, repeat the adjustment.
NOTE: If the parking brake cable is replaced, prestretch it by applying the parking brake hard three or four times before attempting adjustment.