Steering: gear box: shaft sector
- Component
- Steering: gear box: shaft sector
- Manufacturer
- MACK TRUCKS, INCORPORATED
- Vehicles affected
- 267
- Reported to NHTSA
- 1990-03-16
- Owners notified
- 1990-06-14
Defect description
INTERFERENCE BETWEEN STEERING GEAR SECTOR SHAFT AND THE FRAME RAIL THROUGH HOLE CAN CAUSE SECTOR SHAFT WEAR AND CAN WEAKEN SHAFT CAUSE IT TO BREAK.
Safety risk
SHAFT FAILURE DURING VEHICLE OPERATION WOULD CAUSE LOSS OF STEERING CONTROL AND A CRASH WITHOUT PRIOR WARNING.
Manufacturer remedy
ENLARGE FRAME RAIL THROUGH HOLE TO PREVENT INTERFERENCE: REPLACE STEERING GEAR SECTOR SHAFT IF SCORED.