The 8 1/4 thread
Not with that higher carrier in the lower housing the higher housing the pinion is offset to the side and the lower housing is centered. So the higher carrier has to go into the "offset" housing and the lower in the "centered" housings, I think post #2 or so shows the difference. Need a good shot of his housing from the front or back to see which one he has. I have looked for numbers on them but no luck so far and of course I scrapped the old high housing I had a few weeks ago.