So update on mine. 100% rear driveshaft. Just like you I had it rebuild with Toyota u joints and balanced all that stuff. I drove it without the rear before and got not vibe on decel. that’s why I rebuilt it. Then it came back so I figured it was something else. Well pulled again bam no more noise again. So my DS angle is 11.4 which 10 is max so now to I put a DC and rotate or put a new stock one and see how long it lasts with that angle. Or lower it to where my angle is in tolerance haha. Either way more $$$ in the hole haha