NHTSA Campaign Id 71V207000; Date: Nov. 30, 1971
1955 Mack Mack; 1956 Mack Mack; 1957 Mack Mack; 1958 Mack Mack; 1959 Mack Mack; 1960 Mack Mack; 1961 Mack Mack; 1962 Mack Mack; 1963 Mack Mack; 1964 Mack Mack; 1965 Mack Mack; 1966 Mack Mack; 1967 Mack Mack; 1968 Mack Mack; 1969 Mack Mack
Component: Suspension:front:springs:coil Springs
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 27,976
B,c,g,h,f,mb,r and u models equipped with swdl56 series bogie s. Possibilitythat aluminum spring cap used to hold spring m ay devilop cracks which couldpermit cap to fail and allow spr ing to separate from axle. (correct byinspecting and replaci ng cap with iron cap. )
Date Owners notified by Manufacturer: Feb 22, 1972
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