System: steering; linkages.vehicle description: heavy duty class 8 trucks equipped with fa(w) 14.3 spicerfront axle.note: if the vehicle IS presented to an authorized dealer on an agreed upon service date and the remedy IS not provided free of charge within a reasonable time or the remedy does not correct the defect, please contact mack trucks at 1-610-439-3011. Also, contact the national highway traffic safety administration's auto safety hotline at 1-800-424-9393.