NHTSA recall 79V171000
Suspension › Rear › Springs › Leaf spring assembly
Mack F and 12 more
Reported Jul 12, 19791,706 vehicles affectedMACK TRUCKS, INCORPORATED
The defect
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.
The 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.