the New process is a great choice. I'm puting one in my 59 chevy 2 door wagon, I was able to pick up the tranny at a swap meet with bell housing and shifter for $300 plus a rebuild kit for around $150. It's also listed as a New Process A833. Another option is the Ford Toploader Overdrive, for a short time GM made a bell housing that mated a ford toploader to GM motors.
