NHTSA Campaign Id 68V063000; Date: Jun. 13, 1968
9999 Mack DM400; 9999 Mack DM600
Component: Steering:linkages
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 1,130
Possibility steering levers used on power steering unit may not conform to manufacturing standards. Extreme operating conditions could cause a fracture of this lever. This would affect steering control of the vehicle. (correct by inspecting and replace as necessary. )
Date Owners notified by Manufacturer: Jun 10, 1968
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