741 gears

742 gears will NOT fit into a 741 case

Was kinda hoping to hear from someone who had tried it....interesting to see in that thread there were folks who said they had done it....
The only reason I mentioned yokes is because the pinion spline count is different, so thats a given. The difference in the pinion itself is 1-3/8 stem as opposed to 1-3/4 (no clue if there are other differences). The big question in my head is the OD of the front race????