I'm not where I can get to my motor until next week. However, I found some paperwork on my Muncie. The #'s you asked me for are: P0806, these #'s are on the Pass. side main case. The #'s 3857584GM are found on the pass. side, rear of shaft. I, of course, am not able to open it up, but the output shaft has 27 teeth. There's also a set of #'s on the drivers side cover of the main case, where the linkage ties into. They read 3884685. Does this help any? I matched this up with the info you sent me, and as far as I can tell without opening it up, it's an M-22. Please correct me if I'm wrong. I'm still satisfied with an M-21. Am I missing anything else? Now that were talking #'s. I also have a 400 complete. The heads are 4X, the cast #'s next to dist. hole are 481988. Am I missing a #? Near that towards driver side there are four digits that read F093, the letters D N with an arrow pointing to the D. Too much info? The front Pass. side reads 803479 with an X4 stamped right below it. This motor is set up for a 4speed, if that helps any. What do I got?
