OS 55ax new (15611) vs old (15610)
03-24-2010, 12:11 PM
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OS 55ax new (15611) vs old (15610)
Apparently there are 2 different OS 55ax engines a new number 15611 engine and an old number 15610 I am trying to figure out what the difference is. For them to change part numbers there had to be some type of change. Any one know what the change is and when they did?
