you will probably have to find another transmission with one in it. At least that is how I got mine. You could try jim carter, he has a junkyard or at least access to used parts. You could call Dreamers in everett washington, they also have access to parts. Besides they are really good people. I would think pre-68 Dave may have one, but since he hasn't replied maybe not. To match tire size you need to know the diameter of the tire, the size of the wheel doesn't mean much.
