NHTSA Recall 78V171000
NHTSA Campaign Id 78V171000; Date: Aug. 8, 1978
Recalled Vehicles:
1971 Mack F; 1972 Mack F; 1973 Mack F; 1974 Mack F; 1971 Mack MB; 1972 Mack MB; 1973 Mack MB; 1974 Mack MB; 1971 Mack R; 1972 Mack R; 1973 Mack R; 1974 Mack R; 1971 Mack U; 1972 Mack U; 1973 Mack U; 1974 Mack U
Component: Steering:linkages:knuckle:spindle:arm
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 2,100
Recall Summary:
Deficiencies, in the form of forging laps, cracks and excessive decarburization during heat treatment, exist in the steering knuckles. Stresses imposed with integral hydraulic power steering may lead to a failure in the area of the steering arm attaching boss. This type of failure would cause loss of steering control.
How to Fix:
Dealer will inspect and, if necessary, replace the left steering knuckle with an improved type of knuckle.
Recall Notes:
Vehicle description: truck tractors. System: steering; steering knuckle. Consequences of defect: loss of steering control could cause a vehicleaccident.
Date Owners notified by Manufacturer: Aug 10, 1979
Also see: