I got a friend over to check out the flywheel while I turned the crank and it turned out that I have a bad ring gear. Will take care of this in the next few days. Having found this though does not mean the problem is solved. The starter has just been serviced and only used a maximum of about two seconds continuously. We first looked at the ground which was ok. The starter though did show a tremendous load when used in place. Once taken off the tractor it is working great. I'm sure we will get it figured out in time.