Springs: leaf spring assemblyRecall 84V-142 · 1984 Mack MH
MACK TRUCKS, INCORPORATED recall 84V-142 covers 2,198 1984 Mack MH for a springs: leaf spring assembly problem, reported to NHTSA on November 7, 1984.
Source: NHTSA recall 84V142000 and manufacturer quarterly reports. Started by the manufacturer.
The problem
THE SPRING CENTER BOLT IS NOT THE PROPER SIZE OR LENGTH. AS A RESULT, LOCATION AND ALIGNMENT OF THE SPRING TO THE FRONT AXLE MAY NOT BE CORRECT. IF THE FRONT SPRING CLIPS LOOSEN, THE INADEQUATE CENTER BOLT MAY RESULT IN SPRING TO AXLE MISALIGNMENT, SHIFTING OF THE AXLE, AND LOSS OF STEERING CONTROL.
The fix
THE DEFECT WILL BE CORRECTED BY THE ADDITION OF A SPACER BETWEEN THE SPRING AND THE CENTER BOLT HEAD TO INCREASE THE EFFECTIVE HEAD LENGTH. A LONGER CENTER BOLT WILL ALSO BE INSTALLED FOR POSITIVE RETENTION.
VEHICLE DESCRIPTION: HEAVY TRUCKS.SYSTEM: SUSPENSION; FRONT SPRING CENTER BOLT.CONSEQUENCES OF DEFECT: THIS DEFECT COULD CAUSE LOSS OF VEHICLE CONTROL AND ANACCIDENT COULD RESULT.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.