Help with corner weight and vibration

Ok so I cured 90% of the vibration!!! So here's what I found out, check with you driveline shops and make sure they are high speed balancing the shaft!! I had the drive shaft balanced again(the 5th time) and it fixed it. The shop that was balancing the shaft the majority of the time had a 500 rpm conputerized balancer, second place I took it to had one that spun at 4000 rpm, and this was the difference. I ruled out the second company a while back because they did balance the shaft for me once before but I think I had bad pinion angle, then when I changed pinion angle the shaft became too long or short and had to be rebuilt, which I took it to the closer shop which had the low rom balancer.

Still have some drone from exhaust to work out and loose bracket on exhaust but everything else seem to do fine at 80. I will say I have a high rom vib but hopefully that changes with my motor swap this winter. Thanks for everyone's help!

Few tips for anyone searching about driveline or driveshaft or speed vibrations
1.Don't change multiple things at once
2. Write down every combination you try(pinion angles, where shaft was built or balanced, etc)
3. Ask your driveshaft shop what rpm they balance at
4. And good luck!