3.55 sure grip

If I have a center section already, I could buy a Mopar 8.75, 8 3/4, clutch type sure-grip, power-lock, posi from lets say Dr Diff. and between the two have a complete suregrip center section ,ready to go after assembly. I am not sure it might have been fishy68 that linked over to part number that would allow me to use a 7290 yoke when the old one was a 7260 a TRW 20226 is that a fit?

Yep. A lot of guys do it that way. I have in the past also. I mentioned a conversion U-joint being available but I don't think I provided a link. Not sure on the TRW #. I'm pretty sure Dr. Diff sells the conversion joint