No, it has a 1". From the serial numbers I read off the case and tailhousing, I have the following:
Main case : 1966-1967
So, this may have been something thrown together. In any case, I did receive an e-mail from someone that stated, without a doubt, that the synchro solders were garbage. Big gear head stated the same thing back on 3-17. I haven't pulled the tranny apart yet, but at least I have a good starting point. Thanks everyone for the help and input.