1978 Gmc P30 Recalls

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NHTSA Campaign Number: 78V019000
Manufacturer: GENERAL MOTORS LLC
Manufactured Begin Date: November 1st, 1977
Manufactured End Date: December 1st, 1977
Date of Owner Notification: January 23rd, 1978

Defect Summary:
THE INTERMEDIATE SHAFT COUPLING ON THE INVOLVED VEHICLES MAY HAVE BEEN MACHINED OVERSIZED IN THE SERRATION AREA WHERE IT ATTACHES TO THE STEERING COLUMN. THIS WOULD PREVENT THE COUPLING FROM PROPERLY TIGHTENING ON THE SHAFT WHEN THE CLAMP AND PINCH BOLT WERE INSTALLED.

Corrective Summary:
DEALER WILL REPLACE THE SHAFT COUPLING, IF NECESSARY, WITHOUT CHARGE TO OWNER.

Recall Notes:
VEHICLE DESCRIPTION: TRUCKS AND BUSES.SYSTEM: STEERING; SHAFT COUPLING.CONSEQUECES OF DEFECT: THE COUPLING MAY SLIP ON THE SHAFT WHEN THE STEERINGWHEEL IS TURNED. UNDER CONTINUED OPERATION, THE PINCH BOLT MAY BYPASS THE NOTCHIN THE STEERING SHAFT UNDER HIGH STEERING EFFORT. LOSS OF STEERING CONTROL ANDAN ACCIDENT MAY RESULT.NOTE: A RASPY NOISE, ACCOMPANIED BY INCREASED FREE PLAY IN THE STEERING WHEEL,MAY INDICATE THE DEFECT.