So I got my lower case with my new tranny installed back together today and it worked great but as soon as I tightened the clutch boss nut the thing won't go into gear again. The only way I can get it to shift into the next gear is to rotate the tranny shaft. Then I will rotate it again and suddenly it will shift through all the gears again. then I rotate it some more and it won't shift to the next gear. I am totally stumped to the point I am ready to just but a whole new lower end. Can anybody help me with how to get this transmission installed correctly? PLEASE HELP!!! Seriously somebody has to have been through the same thing and can shed some light. The service manual is no help on this one.