I was searching the parts breakdown for the transmission and came upon partstree.com but there are many parts not available there. Specifically the bearing assembly, countershaft rear roller. I have no idea what shape the transmission is in but I would like to know the best place to source the parts before I tear into it. Are there any rebuild kits available for these transmissions other than the gear sets and such that are available. I am thinking that I want to just build it up stock for now.