If you look at thercracer website in his guide he talks about steering for the TT02 and the parts needed to get what you're looking for.

Bear in mind it used to be that you needed to get several different hop ups to make it work but you don't anymore.

Tamiya #54752 has all of it. It's way cheaper than buying the individual pieces separately.

I actually let Craig/thercracer know and being the a cool guy that he is, he's updating his site.

Seth