RedFox, this may differ on campuses (regarding if you can rush with a transfer GPA) I would contact the Office of Greek Affairs (or whatever office on your campus handles the Greek stuff!) to see what they have to say.
Lots of people transfer to my school, and from what I know, some of my sisters rushed and joined the Fall semester when they first transferred, so it may definately be possible!
If you have 3 years left instead of 2, definately be sure you let them know during rush! That is a great positive for you!