MACK issued a recall on the MIDLINER and MS300 models

THE TRANSMISSION OUTPUT YOKE MKAY FAIL DUE TO THE COUNTERBORE BEING MACHINED OVERSIZE BY 10 M.M. FAILURE WOULD MOST LIKELY OCCUR UNDER HEAVY THROTTLE AT FULL TORQUE AS IN AN INITIAL START MODE. IN SUCH A CASE SHRAPNEL MAY BE PROPELLED OUTWARD FROM THE VEHICLE CAUSING INJURY TO BYSTANDERS. FAILURE COULD ALSO OCCUR DURING NORMAL HIGHWAY OPERATION WITHOUT PRIOR WARNING CAUSING LOSS OF POWER TO THE REAR WHEELS.