OFFICIAL NHTSA RECALL

78V028000

Steering:linkages

Reported Feb 9, 1978 · MACK TRUCKS, INCORPORATED

Summary

THE STEERING PITMAN ARM IS SUBJECT TO FAILURE AT THE AREA OF THE TRANSITION TO THE ARM OFFSET DUE TO HIGH STRESS CONCENTRATIONS.

Consequence

Not supplied in the source record.

Remedy

DEALER WILL REPLACE THE STEERING PITMAN ARM, STEERING GEAR OUTPUT SHAFT AND STEERING GEAR MOUNTING BRACKET.

Notes

VEHICLE DESCRIPTION: TRUCKS.SYSTEM: STEERING; STEERING PITMAN ARM.CONSEQUENCES OF DEFECT: PITMAN ARM FAILURE COULD CAUSE LOSS OF VEHICLE CONTROLWITHOUT PRIOR WARNING AND A POTENTIAL VEHICLE ACCIDENT.

This campaign page uses the representative official campaign record. Applicability-specific source variants appear on the linked vehicle pages. Recall counts refer to campaigns, not affected vehicles.

Vehicle entries in this campaign

1977 Mack HMM6856S 1976 Mack HMM6856S 1975 Mack HMM6856S 1974 Mack HMM6856S 1973 Mack HMM6856S

This is model-level recall history. It does not confirm whether a particular VIN is affected or has received the repair. Check with NHTSA ↗