Wheels:lugs/nuts/bolts/studs

NHTSA recall 77V200000 · announced November 16, 1977 · filed by General Motors Corp. · 4,504 units affected

The problem

THE REAR WHEEL MOUNTING BOLTS ON THE AFFECTED VEHICLES, ARE BRITTLE AND THEREFORE MAY FRACTURE. THIS BRITTLENESS IS DUE TO IMPROPER HEAT TREATMENT DURING MANUFACTURE. IF THE BOLTS BREAK, THE TIRE AND WHEEL ASSEMBLY MAY SEPARATE FROM THE VEHICLE.

What to do

DEALER WILL INSPECT AND, IF NECESSARY, WILL REPLACE DEFECTIVE BOLTS ON ALL AXLES AND THE TEN REAR AXLE WHEEL MOUNTING BOLTS, FREE OF CHARGE.

Notes

VEHICLE DESCRIPTION: PASSENGER VEHICLES.SYSTEM: SUSPENSION; REAR WHEEL MOUNTING BOLTS.CONSEQUENCES OF DEFECT: IF SEPARATION OCCURS UNDER VEHICLE OPERATION, LOSS OFVEHICLE CONTROL WITHOUT PRIOR WARNING AND AN ACCIDENT COULD RESULT.

Vehicles covered by this recall

• 1978 Buick Lesabre
• 1978 Cadillac Deville
• 1978 Cadillac Limousine
• 1978 Chevrolet Caprice
• 1978 Chevrolet Impala
• 1978 Oldsmobile 88
• 1978 Pontiac Bonneville
• 1978 Pontiac Bonneville Brougham
• 1978 Pontiac Catalina

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