You don't need to replace the tranny. I have no idea what that guy is talking about. Unless it is grinding, no tranny repair would be necessary.

Now, you should have gotten the 120k service done, at or before 120k. That includes..
Timing belt
Timing belt tensioner
Water Pump
Oil Pump
Plus some other stuff, but that is the main components that should be replaced at 60 and 120k.

Tyler