Just looked at owners manual it shows 64 PTO HP and 1.7MPH for low range 1st gear. I looked at the John Deere specs and it was also 1.7MPH for low range 1st gear, so it might be just better to stick with the Kubota. I want to say thanks for all the help.
Also, we were talking about his older New Holland and I sorta remember a turtle symbol on the gear knob, so it might have had the ultra low 1st gear or maybe it just seemed slower than it actually was moving.