NHTSA Campaign Id 73V153000; Date: Jul. 18, 1973
1971 Mack R; 1972 Mack R; 1973 Mack R; 1971 Mack RD; 1972 Mack RD; 1973 Mack RD; 1971 Mack RL; 1972 Mack RL; 1973 Mack RL; 1971 Mack RS; 1972 Mack RS; 1973 Mack RS
Component: Communications:horn Assembly
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 1,285
Mack trucks campaign no n/a. Manuf'd Feb. 1971 thru June 1973. Trucks. Possibility that the electric horn mounting bracket could crack and fail. Ifthis condition exists the horn could interfere with steering shaft universaljoint and cause steering lockup in a left hand turn situation. (correct byinspecting and replacing horn assembly with improved type bracket).
Date Owners notified by Manufacturer: Oct 22, 1973
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