MACK TRUCKS, INCORPORATED filed this campaign with NHTSA on 1977-06-17.
Recall campaignNHTSA 77V096000
Wheels
Component
Wheels
Manufacturer
MACK TRUCKS, INCORPORATED
Vehicles affected
825
Reported to NHTSA
1977-06-17
Owners notified
1977-09-09
Defect description
THE FRONT WHEEL RIM CLAMP STUDS, INSTALLED ON THE INVOLVED VEHICLES, MAY NOT HAVE BEEN MANUFACTURED CORRECTLY, CAUSING A BRITTLE CONDITION IN THE THREAD ROOT AREA. THE STUDS COULD EVENTUALLY CRACK AND BREAK WHEN WHEEL NUTS ARE TIGHTENED TO SPECIFICATIONS.
Manufacturer remedy
THE DEALER WILL REPLACE ALL SUSPECT FRONT WHEEL STUDS, WITHOUT CHARGE TO OWNER.
Notes
VEHICLE DESCRIPTION: HEAVY TRUCKS.SYSTEM: WHEELS; STUDS.CONSEQUENCES OF DEFECT: WHEEL STUD FAILURE COULD CAUSE A LOOSENED TIRE ASSEMBLYAND IMPAIRED VEHICLE CONTROL. FAILURE OF MORE THAN ONE STUD COULD CAUSESEPARATION OF THE TIRE AND RIM ASSEMBLY, CAUSING LOSS OF VEHICLE CONTROL AND ANACCIDENT.NOTE: DRIVER MAY BE ALERTED TO THE CONDITION BY A WOBBLE OR VIBRATION IN THEAFFECTED WHEEL.
Safety recall repairs are provided free of charge by franchised dealers, regardless of vehicle age or mileage. This page displays aggregated data for the model year. To check recall status for a specific vehicle, search its VIN at nhtsa.gov.