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NHTSA Campaign 79V130000

STEERING: STEERING WHEEL/HANDLE BAR

Issued by MACK TRUCKS, INCORPORATED · Reported May 30, 1979 · 2,187 vehicles affected

What's wrong

IT HAS BEEN DETERMINED THAT TWO SCREWS THAT ARE PART OF THE BEARING ASSEMBLY LOCATED AT THE CAB DASH SHEET MAY NOT HAVE BEEN TIGHTENED PROPERLY. AS A RESULT, THE UPPER STEERING SHAFT MAY BE FREE TO "FLOAT" THROUGHOUT MUCH OF ITS LENGTH WHICH MAY RESULT IN INADEQUATE ENGAGEMENT IN THE SLIP SPLINES OF THE LOWER STEERING SHAFT. AXLE ARTICULATION COULD RESULT IN DISENGAGEMENT OF THE LOWER STEERING SHAFT SLIP SPLINES.

Remedy

DEALER WILL INSTALL A SLEEVE BETWEEN THE DASH SHEET BEARING AND THE UPPER STEERING SHAFT LOWER YOKE TO ASSURE POSITIVE UPPER STEERING SHAFT LOCATION.

Vehicles affected by this recall

Make Model Year Units
MACK RWL 1978 2,187
MACK RWL 1979 2,187
MACK RWS 1978 2,187
MACK RWS 1979 2,187

Source: NHTSA Campaign 79V130000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.