My transmission is long out of production yes. The tranny is in great shape other than the brass cone clutch worn out. It is being replaced with 100% yanmar/kanzaki parts so I'm not worried. My other option is buy a used Km2a of unknown condition and frankly my freshwater tranny still looks brand new so buying another 40yr old piece that may or may not have been taken care of just doesn't work.Is your transmission or an exact replacement out of production? I haven't had any luck with rebuilds and I think you're going to be a long way away, by the time you may need to collect on that warranty. That certainly doesn't mean this won't work.