Recall 79V-017: 1977–1978 Mack DM, 1977–1978 Mack R and 2 more

MACK TRUCKS, INCORPORATED recall for suspension, reported to NHTSA on Jan 12, 1979, covering about 4,000 vehicles.

NHTSA number
79V-017
Report date
Jan 12, 1979
Vehicles affected
4,000
Owners notified
Aug 13, 1979

The problem

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 fix

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.

Notes

Vehicle description: trucks, heavy.system: suspension; insulator cap.consequences of defect: loss of vehicle control can result and lead to avehicle accident.

Recall details

ManufacturerMACK TRUCKS, INCORPORATED
ComponentSuspension › Multiple Axle
Recall started bythe manufacturer
NHTSA campaign number79V017000

Vehicles in this recall

VehicleModel years
Mack DM1977, 1978All years
Mack R1977, 1978All years
Mack RD1977, 1978All years
Mack U1977, 1978All years

Not every vehicle of these model years is included. Enter your VIN at nhtsa.gov/recalls ↗ or ask a dealer.

Frequently asked questions

What is recall 79V-017?

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.

How is recall 79V-017 fixed?

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.

Is the recall repair free?

Yes. Safety recall repairs are free at authorized dealers. Check whether your vehicle is included with its VIN at nhtsa.gov/recalls.