NHTSA Campaign Id 79V031000; Date: Jan. 19, 1979
1978 International Harvester 1600; 1979 International Harvester 1600; 1978 International Harvester 1700; 1979 International Harvester 1700; 1978 International Harvester 1800; 1979 International Harvester 1800; 1978 International Harvester 1900; 1979 International Harvester 1900
Component: Steering:wheel And Handle Bar
Manufactured by: International Harvester
Affected Units:: 9,375
The defect is insecure clamping of the steering column coupling to the steering gear input shaft due to clamp failure. The clamp was improperly heat-treated and may be deformed or fractured. Insecure clamping can cause wear and progressive looseness, which if not detected or not promptly repaired could progress until serrations of shaft and/or internal spline teeth of coupling become stripped.
The dealer will replace the clamp, bolt and nut on all affected vehicles at no cost to owner.
Vehicle description: trucks, medium; buses, tractors. System: steering; column coupling. Consequences of defect: failure of this connection can cause loss of vehiclecontrol and an accident.
Date Owners notified by Manufacturer: Feb 23, 1979
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