Where do you put reverse gear inside case when you are reinstalling top cover & shifter? I positioned reverse gear so that it was halfway engaged, put top cover on. Main shaft turns till you put it in gear, then it locks up. Reverse gear is always engaged the way I have it now. Starting to think that this project is over my pay grade. Thank ya'll for all the info on rebuilding trans, could not have gotten it apart or back together without it!