According to a 2012 report "Texas Automotive Manufacturing Industry Report" prepared by the Texas Office of Governor, Navistar's Garland Plant:
Occupies 683,000 sq. ft. on 49 acres
Produces 150 new trucks a day
Employs 700-750 workers
Onsite contractors employ 400-500 workers
Operates 1 production shift
$36 million invested into the plant over the last 5 years
Actually your message was more matter of factly
"While it may be technically true a few Scouts were built in Chatham it is a very misleading statement, over 99% of them were built in Fort Wayne."
I have never heard such a sour reply conceding that you were wrong. They were built in Chatham for the Canadian market because they had to be. Once the autopact came in, they no longer had to build them here to sell them here, so they did not.