Guys, might want to reread both of their threads, this is a drive shaft issue not alignment, balance or hub issues, they both need to have their new drive shafts rebalanced or replaced .

 

I have worked on one issue, found another issue and thought they were related, but then found out they weren't related at all. I would guess the issues are related, but you have to be open to the possibility that the issues are not related.

 

It was the front driveshaft. Between 35-40 mph seems to be the vibration. I installed it. It was easy. The front driveshaft had broke so I needed a new one.