United States 87V080000
PACCAR Incorporated
The problem
THE MALLEABLE IRON REAR HUBS MAY EXHIBIT CRACKS. ALSO, THE FRONT AXLE HUBS MAY HAVE NOT BEEN PROPERLY HEAT TREATED.
Risk
AXLE HUBS MAY CRACK STARTING AT POINT WHERE WHEEL STUDSHAVE BEEN PRESSED INTO THE HUB.
What owners should do
REPLACE AXLE HUB, AS NECESSARY.
Units 2200