Im going to need a new transmission soon as mine is mostly stock and ive got a 383 in front of it. I would like some honest opinions on what transmission should be next. I have 3.73's and I would like a nv4500 but they cant be found, and a guy can rebuild a 700r4 with EVERYTHING for a fair price. I found a place where I can get the 4500 used for 700 and and the 700r4 new and super-built for about 700-800. My only considerations is getting a different bellhousing for the 4500 and making new crossmembers or shell out money and "hope it doesnt break" for the 700r4. or are there any other suggestions?