Transport CanadaCritical
1979 GMC H8500Transport Canada Recall #1980100
The official notice
Defect
VEHICLES EQUIPPED WITH CERTAIN DETROIT DIESEL ALLISON TRANSMISSIONS MAY HAVE IMPROPERLY MACHINED FORWARD CLUTCH HOUSINGS. THIS CONDITION AFFECTS OIL EVACUATION IN THE CLUTCH HOUSING AND MAY CAUSE THE VEHICLE TO MOVE FORWARD WHEN THE TRANSMISSION SELECTOR LEVER IS IN THE NEUITRAL POSITION.
Safety Risk
No risk description available.
Remedy
No remedy description available.
225 vehicles affectedMfr ref: System.StringUpdated June 10, 2026