NHTSA Campaign 85V157000

STEERING: STEERING WHEEL/HANDLE BAR

Issued by MACK TRUCKS, INCORPORATED · Reported Nov 26, 1985 · 143 vehicles affected

What's wrong

THE SPLINED STEERING SHAFT MAY NOT BE SUFFICIENTLY ENGAGED AS DESIGNED DUE TO INACCURATE DRILLING OF THE HOLES IN THE FRAME TO WHICH THE CAB FRONT MOUNT MEMBER IS BOLTED. UNDER CERTAIN CONDITIONS THE STEERING SHAFT MAY DISENGAGE. CONSEQUENCE OF DEFECT: A JARRING IMPACT MIGHT CAUSE DISENGAMENT OF THE SPLINED SHAFT RESULTING IN LOSS OF STEERING CONTROL AND POSSIBLY AN ACCIDENT.

Remedy

REPLACE SHAFTS WHICH MEASURE UNDER THE MINIMUM ENGAGEMENT DIMENSIONS WITH LONGER SHAFT.

Vehicles affected by this recall

Make Model Year Units
MACK CF 1973 143
MACK CF 1974 143
MACK CF 1975 143
MACK CF 1976 143
MACK CF 1977 143
MACK CF 1978 143
MACK CF 1979 143
MACK CF 1980 143
MACK CF 1981 143
MACK CF 1982 143
MACK CF 1983 143
MACK CF 1984 143
MACK CF 1985 143

Source: NHTSA Campaign 85V157000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.