I could have been. they had two plants close to each other. I do not know witch plant made what by the time your XJ was built. It was the longest manufacturing plant still in operation when they closed it down for the new plant a few years back. It stared out as a bicycle plant before Willys purchased it. Mr Willys lived down the street from my brothers current house. I little side note Mr Willys did not drive, so they say around here.