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NHTSA Campaign 79V082000

STEERING: STEERING WHEEL/HANDLE BAR

Issued by MACK TRUCKS, INCORPORATED · Reported Apr 3, 1979 · 12,000 vehicles affected

What's wrong

AN IMPROPER PINCH BOLT AND NUT MAY HAVE BEEN USED IN THE CLAMPING OF THE STEERING SHAFT TO THE STEERING GEAR INPUT SHAFT. DUE TO CLAMPING FORCE LOADS APPLIED AT THE BOLT, THE NUT COULD YIELD, RESULTING IN LOOSENESS OF THE INPUT SHAFT YOKE. SHOULD THIS CONDITION GO UNNOTICED, SPLINE WEAR COULD CAUSE SHAFT SEPARATION.

Remedy

VEHICLES WILL BE INSPECTED AND, IF NECESSARY, THE CORRECT FASTENERS WILL BE INSTALLED AT NO CHARGE TO OWNER.

Vehicles affected by this recall

Make Model Year Units
MACK DM 1977 12,000
MACK DM 1978 12,000
MACK R 1977 12,000
MACK R 1978 12,000
MACK RD 1977 12,000
MACK RD 1978 12,000
MACK U 1977 12,000
MACK U 1978 12,000

Source: NHTSA Campaign 79V082000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.