This may be old news to seasoned TD's but I tried to remove a turbo in a rampage before without pulling the head. I couldn't do it. Maybe because it was a 2.5? Anyway, I pulled the turbo out the other day without removing the head. Seems to me the best way to get at the top drivers side nut on the flange is to use a 5" extension. I used a 6" but it was tight. I removed the throttle body and was able to pull the turbo out. hope this helps another Rampage owner.