NHTSA recall 79V017000
Suspension › Multiple axle
Mack DM and 3 more
Reported Jan 12, 19794,000 vehicles affectedMACK TRUCKS, INCORPORATEDBuilt Jan 1, 1977 – Dec 1, 1978
The defect
A casting deficiency exists in the lower section of the caps resulting in a reduction in the thickness of the material. Failure of a cap can allow the end of the rear spring to detach from the axle housing.
The remedy
Dealer will inspect and, if necessary, replace any of the spring insulator caps found to be defective. This will be done at no cost to owner.