I have a 56 Nomad. The car originally had a 265. Right now it has a 327 and turbo 350 which I'm pulling out to put a 265 back in. However I want to make sure I put the right transmission in it. Right now it does have the turbo 350, automatic column, and automatic speedo, however it definately is possible somebody changed this at one time. Is there anyway to tell for sure what it originally came with ? 3 spd or Powerglide ?