1981 International Harvester 4370 Recalls

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NHTSA Campaign Number: 83V120000
Manufacturer: INTERNATIONAL TRUCK & ENGINE CORPORATION
Manufactured Begin Date: June 1st, 1980
Manufactured End Date: October 1st, 1983
Date of Owner Notification: January 2nd, 1984

Defect Summary:
A SPRING LEAF MAY FRACTURE THROUGH THE CENTER HOLE SECTION. THIS OCCURS DUE TO LOOSENING OF THE SPRING-TO-AXLE MOUNTING ATTACHMENT FOLLOWING EXTREME FLEXING OF THE SPRING LEAVES. THIS KIND OF FRACTURE MAKES THE REMAINING TWO LEAVES VULNERABLE TO PROGRESSIVE FRACTURE.

Corrective Summary:
VEHICLES WILL HAVE THE THREE-LEAF SPRING ASSEMBLY REPLACED WITH AN IMPROVED UNIT.

Recall Notes:
VEHICLE DESCRIPTION: HEAVY TRUCK TRACTORS.SYSTEM: SUSPENSION; REAR SPRINGS.CONSEQUENCES OF DEFECT: IF ALL THREE LEAVES FRACTURE, THE REAR AXLE MAYSUDDENLY SHIFT POSITION, WHICH COULD RESULT IN LOSS OF VEHICLE CONTROL AND ANACCIDENT.