Mack Recall 77V149000: Wheels, Multi Piece

NHTSA recall 77V149000 · announced September 19, 1977 · filed by Mack Trucks, Incorporated · 250 units affected

The problem

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.

What to do

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

Official NHTSA recall notice →

Notes

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.

Vehicles covered by this recall

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

Source: National Highway Traffic Safety Administration public recall data. This page reports official records and is not legal, medical, or repair advice.