Well, there is www.bieberfever.com(800-545-8387) on University. I use to use them a lot but I have started to hear really bad things about them. Some guy bought a stage 3 AODE from them and when he got his car back it had the same tanny in there. All they did was install a shift kit and I guess yeah even did that wrong. Well, now he is suing. You best bet is just to take it to a transmission shop. I used K B transmissions (480-854-7615) in mesa. They installed the shift that came in my car and I have never had any problems.