Hello all. This has been the best forum to ask questions about tube frame Bolens I have seen. I want to say thanks to all here, even the lurkers, as I have been one. Many answers come out indirectly which stop some from asking questions. I have been there myself. Here is the first question I have. My 1225 rear end has issues with staying lock in a posi. I lock it and it unlocks by itself. This tractor seems to impress me everyday that I use it. Even in one wheel drive. I have been told that the keyway is worn and that is the problem. Does this sound correct?