13Affected configurations shown1,706Potential units affected—Latest completion context
What can happen
Safety consequence
THE SPRING SEAT PLATE, LOCATED BETWEEN THE AXLE HOUSING AND THE SUSPENSION SPRINGS, MAY DEFORM DUE TO SPRING BENDING. AS A RESULT, THE CLAMPING FORCE IN THE ASSEMBLY MAY BE REDUCED. LOSS OF CLAMPING FORCE COULD CAUSE SPRING FAILURE AND THE AXLE WILL DISLOCATE. ALSO, THE TIRE COULD COME INTO CONTACT WITH THE SPRING.
What fixes it
Official remedy
THE DEALER WILL REPLACE THE EXISTING SPRING SEAT WITH A NEWLY FABRICATED SEAT WHICH IS WELDED TO THE HOUSING. AN IMPROVED SPRING CLAMPING PLATE AND NEW SPRINGS WILL ALSO BE INSTALLED WITHOUT CHARGE.
Recall lifecycle
Repair completion history
Campaign-level completion reporting. This does not determine whether a particular VIN has been repaired.
Latest reported completion: available in the live DOT record.
Affected vehicles
Vehicle configurations connected to 79V171000
1979 MACK RWLOpen vehicle record →1979 MACK RWSOpen vehicle record →1979 MACK RLOpen vehicle record →1979 MACK MROpen vehicle record →1979 MACK ROpen vehicle record →1979 MACK RSOpen vehicle record →1979 MACK RMOpen vehicle record →1979 MACK WSOpen vehicle record →1979 MACK WLOpen vehicle record →1979 MACK FOpen vehicle record →1979 MACK MCOpen vehicle record →1979 MACK FMOpen vehicle record →1979 MACK MBOpen vehicle record →
Owner action
Campaign pages describe the public recall record. To determine whether your specific vehicle has an unrepaired recall, use your VIN and verify the current status through NHTSA.