I just dropped in 3:91s in my Dart, but I find that I'm all out of gear going 55mph (I'm not surprised) So I'm looking for a cheap way to go for overdrives. I'm a junkyard type of guy, so if someone could tell me what to look for, and in what type of cars and trucks, and what type of modifications I'd need to install one, I'd be really happy. I'm currently running 360/727 w/ an 83/4 Thanks! Just to confuse the issue what's the story on tailshaft overdrives?
