A guy came into my shop the other day and asked us to make a adapter plate up for his Kubota engine to mate it to a ranger 5 speed. It worked rather well actually, as the clutch was the right dimensions for the kubota flywheel and he had figured out that the spacer plate needed to be 3/4" thick. He used the Kubota SAE starter as well. The motors only a 2.2l with something like 40 horsepower, but he wasnt looking to go fast, just get good fuel economy. Figured I would post it up seeing there have been more johndeer and kubota swappers about lately.
Heres a couple of pics.
Just to note: The AutoCad drawings for this project are NOT for sale.