Steering: gear box (other than rack and pinion)
- Component
- Steering: gear box (other than rack and pinion)
- Manufacturer
- MACK TRUCKS, INCORPORATED
- Vehicles affected
- 1,486
- Reported to NHTSA
- 1983-09-27
- Owners notified
- 1984-01-03
Defect description
BOLTED INSTALLATION OF THE STEERING GEAR HOUSING HAS A TENDENCY TO LOOSEN IN SERVICE. THIS IS DUE TO A BACKWARD INSTALLATION OF THE LOCKWASHERS, WHICH ARE BELLVILLE TYPE, AND A RESULTANT INCORRECT TORQUE ON THE BOLTS.
Manufacturer remedy
ALL RECALLED VEHICLES WILL HAVE BELLVILLE TYPE LOCKWASHERS AT STEERING GEAR HOUSING ATTACH POINTS REPLACED WITH STANDARD SPLIT-TYPE LOCKWASHERS.