Getting the tie rod off the tractor is not that bad, but yes they can be stubborn.
Samn40 taught me this trick. Loosen the nut on the end of the tie rod and back off a little. Get a piece of wood and use to apply pressure on the tie rod like you trying to pry the joint apart. Then using a hand sledge (2.5 or 3 lb)Give a good firm and swift smack to end of the lever arm in line with the lever arm.
This action will momentarily flex the circle and the tie rod will pop free. Sometimes it may take several hits with increasing force.