Recall 77V-096: 1977 Mack CF, 1977 Mack DM and 5 more
MACK TRUCKS, INCORPORATED recall for wheels, reported to NHTSA on Jun 17, 1977, covering about 825 vehicles.
The problem
The front wheel rim clamp studs, installed on the involved vehicles, may not have been manufactured correctly, causing a brittle condition in the thread root area. The studs could eventually crack and break when wheel nuts are tightened to specifications.
The fix
The dealer will replace all suspect front wheel studs, without charge to owner.
Notes
Vehicle description: heavy trucks.system: wheels; studs.consequences of defect: wheel stud failure could cause a loosened tire assemblyand impaired vehicle control. Failure of more than one stud could causeseparation of the tire and rim assembly, causing loss of vehicle control and anaccident.note: driver may be alerted to the condition by a wobble or vibration in theaffected wheel.
Recall details
| Manufacturer | MACK TRUCKS, INCORPORATED |
|---|---|
| Component | Wheels |
| Recall started by | the manufacturer |
| NHTSA campaign number | 77V096000 |
Vehicles in this recall
| Vehicle | Model years | |
|---|---|---|
| Mack CF | 1977 | All years |
| Mack DM | 1977 | All years |
| Mack F | 1977 | All years |
| Mack MB | 1977 | All years |
| Mack R | 1977 | All years |
| Mack RD | 1977 | All years |
| Mack RM | 1977 | All 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 77V-096?
The front wheel rim clamp studs, installed on the involved vehicles, may not have been manufactured correctly, causing a brittle condition in the thread root area. The studs could eventually crack and break when wheel nuts are tightened to specifications.
How is recall 77V-096 fixed?
The dealer will replace all suspect front wheel studs, without charge 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.