1992 Bayou 220 2x4 stuck in reverse...
 

:go crazy:

When I got this little Bayou, it was stuck in neutral. Pulled the engine out, tore it down, disassembled the whole transmission. Didn't find anything wrong with it. Put it back together, and it shifted like a dream on the bench. Installed the engine, and have driven it around my yard area now for a month. Yesterday, I got on it, put it in reverse, backed it out of my shop, and now it won't come out of reverse. I have tried everything I can think of to get it to shift.
Any real Bayou gurus out there that have seen this problem and know what the fix is???