and i can go over 65mph now without shaking!!!

This may help. https://dodgeforum.com/forum/1947777-post6.html

yeah, looked into that, it might be the yoke that goes into the tranny or something around that area. but now that the vibration is gone, I hear a very faint wine when I get up to say 50+mph. i do have 3.55 gears and i read low gears wine. Gonna check the fluid after it cools down. but anyone else notice or have this at all?

you should have seen my truck when i got it. couldn't do over 40mph with out the steering wheel shaking itself loose. lol