MACK WL 1979: STEERING: STEERING WHEEL/HANDLE BAR

General Information

NHTSA Campaign ID Number: 79V164000

Make Model Year
MACK WL 1979
Date Owners Notified Date Received by ODI Date Added to Database
1980-01-11 1979-07-09 1979-10-12

Production Dates: 1978-11-01 - 1979-06-01

Manufacturers Involved: Mack Trucks, Inc.

Component: STEERING: STEERING WHEEL/HANDLE BAR

Potential Number Of Units Affected: 4640

Report Initiator: MFR MFR Report

Summary

THE FLANGE HEAD PINCH BOLTS USED IN THE YOKES OF THE STEERING SHAFT ASSEMBLIES MAY HAVE BEEN OVERSTRESSED DUE TO THE BOLTS NOT BEING TIGHTENED TO SPECIFICATIONS. AS A RESULT, THE PINCH BOLTS COULD BREAK WHILE IN SERVICE.

Remedy

FLANGE HEAD PINCH BOLTS WILL BE REPLACED WITH STANDARD GRADE 8 FASTENERS WITHOUT CHARGE TO OWNER.

Notes

VEHICLE DESCRIPTION: TRUCKS.SYSTEM: STEERING; FLANGE HEAD PINCH BOLTS.CONSEQUENCES OF DEFECT: IF BREAKAGE OCCURS, LOSS OF STEERING CONTROL AND AVEHICLE ACCIDENT COULD OCCUR.