http://auto-recalls.justia.com PONTIAC:BONNEVILLE BROUGHAM:1978 Recalls http://auto-recalls.justia.com/content/77V200000-PONTIAC-BONNEVILLE-BROUGHAM-1978.html 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. Fri, 12 Oct 1979 00:00:01 EST