I got this Borg Warner T-10 trans with my 51 Ford. The previous owner was going to hook it up to the 283 chevy he put in the car, but said it hit the tunnel. Ive tried to decode the casting but the only thing i think i figured out is the date. The other thing that made mr wonder about it is the bolt on yoke I guess you would call it. maybe because im more of a ford guy, i never seen one like this, I have little knowledge about chevys, though when i asked a buddy he said it could be something even earlier then a 63. I just want to know what it is, if its worth holding on to or selling it.. Any help would be much appreciated..