Great response from ArcherAce:
"WWII Jeeps were produced by both Willys and Ford. The Willys were known as MBs, and the Fords were GPWs. The Fords were built in a number of Ford factories, but the Willys were only produced in the Toledo facility. There are a number of differences between the two. Here's a link to a good spotters guide. Willys MB / Ford GPW Military Jeeps
After the war (1945) Ford went back to building cars and trucks, while Willys continued to produce the Jeep, now known as the CJ2A, in it's original factory in Toledo. CJ production ended with the introduction of the YJ Wrangler in 1986. Production of the blasphemous YJ was moved to Canada until 92. Wrangler production was then moved back to Toledo were it has remained.
If you're looking for a Jeep that was built entirely at the old facility, you'd have to purchase one that was built between 1942-85. After the CJ/Wrangler returned to Toledo from Canada, body and paint was done at the original facility while trim was done down the road at the Stickney complex. Yes, they actually loaded up painted bodies and trucked them down the street to be trimmed.
In 06, the original plant was closed and all production was moved to the new Toledo Supplier Park located at the original Stickney plant site."