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Mack MS300P Recall 81V089: Power Train:Driveline

NHTSA campaign 81V089, reported July 14, 1981, 500 vehicles potentially affected.

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The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 81V089MACK TRUCKS, INCORPORATED
Component
POWER TRAIN:DRIVELINE
Problem
HOLES DRILLED IN THE REAR AXLE YOKES TO BALANCE THEM COULD CAUSE A FAILURE OF THE YOKE.
Risk
Remedy
VEHICLES WILL BE INSPECTED AND ALL DEFECTIVE YOKES WILL BE REPLACED WITH YOKES WITHOUT HOLES.
Notes
VEHICLE DESCRIPTION: TRUCKS.SYSTEM: SUSPENSION; REAR AXLE YOKE.CONSEQUENCES OF DEFECT: THE YOKE COULD FAIL WITHOUT WARNING DURING VEHICLEOPERATION, POSSIBLY CAUSING LOSS OF VEHICLE CONTROL AND AN ACCIDENT. ALSO, THEFAILURE COULD CAUSE SHRAPNEL TO BE PROPELLED OUTWARD FROM THE VEHICLE, INJURINGANYONE WITHIN CLOSE PROXIMITY.NOTE: THE FAILURE IS MOST LIKELY TO OCCUR WHEN THE VEHICLE IS FIRST STARTED ORWHILE DRIVING AT MODERATE OR HIGH SPEEDS IN A HEAVY TORQUE CONDITION.

Affected vehicles

Mack MS300P19801981
Mack MS300T19801981