Reported Dec 10, 19801,524 vehicles affectedMACK TRUCKS, INCORPORATEDBuilt Jan 1, 1980 – Nov 1, 1980
The defect
The weld on the upper steering shaft where the female spline connects to the tube assembly may have been incorrectly positioned and actually missed the seam.
The remedy
The dealer will inspect and, if necessary, replace the affected shaft with one that has been properly welded, at no charge.
Vehicle description: trucks.system: steering; upper steering shaft.consequences of defect: this condition can cause separation of the steeringshaft assembly, resulting in complete loss of steering, without prior warningand, possibly, an accident.