NHTSA Campaign Id 76V127000; Date: Aug. 12, 1976
1970 International Harvester Unistar Co; 1971 International Harvester Unistar Co; 1972 International Harvester Unistar Co; 1973 International Harvester Unistar Co; 1974 International Harvester Unistar Co; 1975 International Harvester Unistar Co
Component: Steering:linkages:tie Rod Assembly
Manufactured by: Navistar Intl Corp.
Affected Units:: 192
Trucks heavy duty CO 4 x 4. Possibility that left and right tie rod arms mayhave marginal or no heat treatment. If this condition exists, arms couldfracture at large end of the taperwhere arm is attached to steering knuckle. Total fracture would result in detachment of tie rod arm from knuckle withvehicle crash without prior warning. (correct by inspecting and replacing tierod arms with improved design type tie rod arms). Heavy truck.
Date Owners notified by Manufacturer: Aug 31, 1976
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