I am reading some posts on t/a and trans/diff. oil. When I bought my 300 Farmall years ago it had a few bad gears so I split the tractor into 3 parts. While apart I noticed the main clutch and pressure plate were in need of attention. The t/a clutch and pressure plate weren't that great either. So they all got replaced. While it was apart I wondered about the t/a and it's condition. Took it to an old retired ih mechanic who was still doing side work. Guy is now about 80 and is known for being very knowledgeable with the older ih tractors. He looked at it and said you need this this and this. I will order it for you if you want. I told him to get the parts. When the parts came in he said to bring the t/a with me next Saturday morning. He started taking it apart and within a half hour or so it was all back together. And he didn't even want to charge any labor. Total cost for clutches and t/a rebuild was less than 700 dollars. Just wondering why a lot of folks say t/a 's are so costly to rebuild. This guy who did mine said he replaced everything that would ever cause it to fail. Not sure what exactly but I do remember ramp and rollers. No t looking for an argument, just curious.