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NHTSA Campaign 78V028000

STEERING:LINKAGES

Issued by MACK TRUCKS, INCORPORATED · Reported Feb 9, 1978 · 100 vehicles affected

What's wrong

THE STEERING PITMAN ARM IS SUBJECT TO FAILURE AT THE AREA OF THE TRANSITION TO THE ARM OFFSET DUE TO HIGH STRESS CONCENTRATIONS.

Remedy

DEALER WILL REPLACE THE STEERING PITMAN ARM, STEERING GEAR OUTPUT SHAFT AND STEERING GEAR MOUNTING BRACKET.

Vehicles affected by this recall

Make Model Year Units
MACK HMM6856S 1973 100
MACK HMM6856S 1974 100
MACK HMM6856S 1975 100
MACK HMM6856S 1976 100
MACK HMM6856S 1977 100

Source: NHTSA Campaign 78V028000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.