Thanks Bert-O.

Lead, while you can get just the synchro rings themselves, make sure that the teeth on the synchro sleeve set gears are not damaged or worn.
I am rebuilding an ITR tranny right now, and while I can probably get away with replacing just the rings, I realize that with the wear I see on the sleeve sets, I might as well replace everything.

1-2 sleeve set
3-4 sleeve set
5-R sleeve set
All 3 shift forks

Bert-O, I'm gonna need some prices