1984 INTERNATIONAL HARVESTER 4270 Recall

Campaign:

83V120000 on 12/06/1983

Component:

Suspension:rear:springs:leaf spring assembly:leaf

Manufactured:

05/31/1980 - 09/30/1983

Affected:

520

Defect:

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.

Correction:

Vehicles will have the three-leaf spring assembly replaced with an improved unit.

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.

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