NHTSA safety recall

Recall 77V149000

Wheels › Multi Piece — Mack · reported 19 Sep 1977 · 250 vehicles potentially affected

What's wrong

THE FRONT WHEEL ALUMINUM HUBS ON THE INVOLVED VEHICLES MAY BE SUBJECT TO CRACKS WHICH MAY PROGRESS CIRCUMFERENTIALLY AROUND THE BARREL OF THE HUB. THIS COULD LEAD TO A FRACTURE IN THE "BARREL" POSITION OF THE HUB AND COMPLETE HUB FAILURE.

The fix

DEALER WILL INSTALL STEEL HUBS IN PLACE OF ALUMINUM HUBS WITHOUT CHARGE TO OWNER.

VEHICLE DESCRIPTION: TRUCKS EQUIPPED WITH FF-931 FRONT AXLES.SYSTEM: WHEELS; ALUMINUM HUBS, FRONT.CONSEQUENCES OF DEFECT: HUB FAILURE COULD RESULT IN LOSS OF VEHICLE CONTROL ANDAN ACCIDENT.NOTE: HUB FAILURE MAY BE INDICATED BY AN AUDIBLE SOUND AT THE INSTANT OF HUBSEPARATION, ALONG WITH THUMPING OR WHEEL WOBBLE. HUB MAY SEPARATE FROM THEWHEEL AND STILL BE RETAINED ON THE AXLE.

NHTSA campaign
77V149000
Filed by
Mack Trucks, Incorporated
Report received
19 Sep 1977
Owners notified
17 Jan 1978
Potentially affected
250

Vehicles covered by this recall

Whether a particular car is affected and still unrepaired depends on its VIN — a model year being listed does not mean every car of that year is included. Check any VIN free on CarLogs, or at nhtsa.gov/recalls.

1976 Mack Rl 1977 Mack Rl 1976 Mack Rs 1977 Mack Rs 1976 Mack Wl 1977 Mack Wl 1976 Mack Ws 1977 Mack Ws

Is this car's recall fixed?

Recall repairs are free at any franchised dealer, for the life of the vehicle. A CarLogs report shows the recall status for a specific VIN as reported by the manufacturer — whether it's open or repaired, and whether the fix is available yet.

Source: NHTSA Office of Defects Investigation recall database. Look up another campaign →