First post awesome site anyway, I have and old R. hand thread all seal and bushing go devil and want to put a bearing in the top collar so my question is do I leave the top bushing as it is, do I ream it out i lil, or do I totally remove it? Just seeing if I an get a quick answer before I learn through trial and error, Thanks.

Call Go Devil. Have the serial and model number in hand. They are great to deal with and will tell you exactly what you need to know. Duckdon

yea they upgrade the older models. mine is an 1986 upgraded to a 2000 model seals end caps, grease pressure cup, and center bushing.