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.
Contacts
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.
What to do
- Check your VIN. Enter it at nhtsa.gov/recalls - it shows whether this recall applies to your vehicle and whether the repair has been done.
- Call a dealer. Any authorized Mack dealer will do the repair free, whether or not you bought the vehicle there. Quote campaign 77V096000.
- Ask about parts and a loaner. If parts aren't available yet, ask what to do in the meantime.
- Keep your paperwork. If you paid for this repair before the recall, you may be able to get reimbursed - here's how.