While assembling Dad's tractor I noticed his throw out bearing carrier has a grease zerk. I installed it back the way it came off, facing down to accept grease from the inspection hole. I didn't remember this on mine and removed the inspection cover to find no grease zerk. Did 300's not all have a greasable bearing? Mine has some casting numbers on it while Dad's does not. If I was thinking I would have wrote it down but didn't. The casting had an H4 on it if I remember. Looking at it I think I should be able to spin the carrier over without splitting the tractor, right? Just remove the clutch shaft the holds it in place and turn it. Thanks!