Subarus, transmissions, clunking and shifting

I bought a Subaru a couple weeks ago and unfortunately had to replace the transmission and clutch already. After spending a good amount of money the time came to finally have the work done.

Here's a picture of the car i have even though it's not my picture.

This is the transmission i had to replace since the 2nd gear in my original transmission decided it didn't want to be there anymore:

And here is the little piece that's been giving me a lot of issues. A small aluminum shifter adapter. And all it takes is one little crack to make my shifting feel like crap: