Recall campaign · NHTSA 77V172000
GENERAL MOTORS CORP. filed this campaign with NHTSA on 1977-10-12.
THE FRONT AXLE ALUMINUM HUBS ON THE INVOLVED VEHICLES MAY CONTAIN A DEFICIENCY IN THE BARREL AREA BETWEEN THE INNER AND OUTER BEARINGS WHICH MAY RESULT IN CRACKS WHICH COULD EVENTUALLY LEAD TO HUB FAILURE.
DEALER WILL INSPECT AND REPLACE FRONT AXLE ALUMINUM HUBS WITH STEEL HUBS, WITHOUT CHARGE TO OWNER.
VEHICLE DESCRIPTION: HEAVY TRUCKS EQUIPPED WITH FF931 FRONT AXLES AND MOTORWHEEL ALUMINUM FRONT HUBS.SYSTEM: WHEELS; ALUMINUM HUBS.CONSEQUENCES OF DEFECT: WHEN HUB FAILURE OCCURS, THE SEPARATED HUB IS RETAINEDON THE AXLE SPINDLE BY THE WHEEL BEARING ADJUSTING NUTS. CONTINUED VEHICLEOPERATION AFTER A HUB SEPARATION CAN RESULT IN 1) BRAKE ASSEMBLY LOCKUP ANDCONSEQUENT LOSS OF VEHICLE CONTROL, 2) EXCESSIVE HEAT GENERATION RESULTING FROMTHE BRAKE LINE TOUCHING THE BRAKE DRUM WHICH WILL CAUSE A TIRE BLOWOUT AND 3)PROGRESSIVE DAMAGE TO THE HUB WHICH WOULD ALLOW THE HUB, WHEEL, AND TIRE TOBECOME DISENGAGED FROM THE VEHICLE.NOTE: INITIAL HUB SEPARATION MAY BE ACCOMPANIED BY A DISTINCT SOUND AT THEMOMENT OF SEPARATION, ALONG WITH THUMPING OR WHEEL WOBBLE.
16 model years across 10 models.
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.