Recalls for your 1979 Mack Fm

Recalls for 1979 Mack Fm

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DEFECT #1 - SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY


Posted on: 1979-10-12
Description
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.

Consequence


Corrective Action
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.

Notes
Vehicle description: trucks.system: suspension; rear axle assembly.consequences of defect: loss of vehicle control and an accident could resultdue to dislocation of axle and tire to spring interference.