NHTSA Recall 77V096000
NHTSA Campaign Id 77V096000; Date: Jun. 17, 1977
Recalled Vehicles:
1977 Mack CF; 1977 Mack DM; 1977 Mack F; 1977 Mack MB; 1977 Mack R; 1977 Mack RD; 1977 Mack RM
Component: Wheel
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 825
Recall Summary:
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 to Fix:
The dealer will replace all suspect front wheel studs, without charge to owner.
Recall 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.
Date Owners notified by Manufacturer: Sep 9, 1977
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