Replaced steering bearing this summer. Worked great, now I am seeing a leak from a hole in the steering column. It is about 1/4 of the way up the shaft. The hole seems as though it is supposed to be there, the leak….not so much. The liquid is a milky-rusty looking oil or grease. Performance doesn’t seem to be effected at this ooint but I use this tractor constantly and it cannot be down more than a day or so. I need to be proactive with the repairs. Any ideas?