I measured the centers of the props and believe I found 2 pinion yokes that would fit perfectly, on manual transmission, the output shaft prop and pinion prop has 2 different centers.
BUT with 5"x3/8" steel drill the 3 12mm bolt holes, then cut out center so the pinion yoke would slide through and weld in place, when bolted on prop it would use the center bore instead of the pilot for the perfect alignment.

I cut a piece of 3" pvc pipe and put in place checking clearance, a 3" driveshaft would not have any modifications, a 3.5" has 1 bracket to modify, with the 4" I am going with has alittle more, but will be nice when it is done.
If we could modify a slip yoke to go in transmission, would be alot better, but I don't have the time.
Haha costs me a extra $48 a week just in gas to drive my truck than my crossfire, so don't want it down for 2 long.
Would be putting everything in this weekend if I just would have gave up on these shops and made my own plates.