We always referred to them as power SLIDES... They are a good tranny all kidding aside. They only have 2 gears / speeds but they can take a lot of abuse. I wouldn't hesitate to use one but I'd prefer a TH350 if they were the only choices. If the vehicle is a cruiser on a sunday kind of deal, it could be a good fit... but it's old technology and an overdrive tranny is the way to go nowadays. imho.