Hey guys, Right now I have the sm465/205 combo, and, I have a th400/205 core sitting here. I'd like to pull the 350 out of this truck and put a nitrous 454 in and make it an automatic. I can get the th400 built just how I like it. And I do know about the balloning problem, will address it. Best buildup I can do on the 400 and a QUALITY converter. BUT, what will I need to swap this th400/205 into the truck. I have only the th400/205 and otherwise I have nothing else. Will I need another cross member, or, can I mod my 465 one to fit? What about driveshafts and yokes? Thanks a lot guys, Igor.