Is this a new thing or been going on since day 1?
Things to check if you haven't already;
-rear end bushings
-u joints, be sure to pull off caps and check needle bearings
-driveshaft angles, tremec has a nifty app for that
-with driveshaft off, spin rear end make sure pinion isn't all sloppy
-double check driveshaft length while you're at it.
To answer your question, I don't think a yoke change will solve your problem.
Here's a good read on driveline phasing