I have a 1968 MF 165, S/N 9A-54790, Detroit production model. The power steering still works but takes regular top up of the fluid reservoir because the main rod seal leaks so badly. I know there is a little slop in the pins but they do not look badly worn. The steering wheel will tun about 90 degrees before resistance is felt with the tractor engine off. I can see the main rod move about 1/8" when the steering wheel is turned. Is this because pf the hydraulic leaks? What are the chances that a seal kit would stop the leak at the rod? Just curious, when these tractors were new did they have pretty tight steering?