Hey Dave we had a very good transmission in my black Duster from John that was in the car when I bought it. When I switched to a powerglide we put it in my sons Duster and although we have freshens it a couple of times is still going good. It had a crazy issue that we caught while running it on the jack stands once. The wheels would stop when shifted into third gear. I called my buddy and we took that fancy ratio (I think 1.5 or something) shifter lever and switched it back to stock and all is well. I think it’s still on my junk stand if you need a picture of what I am talking about. Let me know