I can’t speak about John Deer, but have recently worked on a Chevy Trailblazer, I think it was around a 2008 Blazer, and everything that I did on it was metric. I didn’t do a whole lot but like I said what I did do was metric. So I infer from that, that US companies are going metric. Since we have chosen to not willingly covert to metric maybe over time it is going to be slowly decided for us. One thing that I do find funny… ratchets are 1/4, 3/8, and 1/2 inch drive. So metric sockets are standard drive. Don’t get me wrong, in this case I am glad they are, it would really suck to have to have different ratchets for each system, but it makes me think that even if all hardware changed to metric we would still have standard ratchets. What are the drive sizes in countries that are solely metric? Do you have standard drive ratchets?