I am looking for a transmition for a vt1100 honda shadow. Where can I find it?

Question

I need a transmition for this bike because 3rd gear is going out of the bike

Answer 1

The VT1100 isn't that old. You should still be able to get parts from a Honda dealer. Most likely the shift forks are worn or bent. The transmission gears themselves are probably OK.
You can get parts here -
http://www.bikebandit.com/partsbandit/OEM-Parts.asp
But before you go buying parts, find out what's wrong first.