What the heck could cause this other than a bad CV axle? I had the car off the ground and the wheels off and when the passenger side axle starts spinning more than 60KPH (also while driving this happens, but that proves it has nothing to do with the wheel like so many people have been telling me) it starts to vibrate like no other. You can actually see the axle develop an eccentric rotation path as it warps due to the vibration....
Anyway I thought "well obviously this axle is just bad" so I replaced it and it made NO difference. What the heck else could cause my axle to be going insane like this? It isn't a warped brake grabbing a bit every rotation or anything, because it doesn't change at all under braking.
It gets more harsh during accel or decel (under positive or negative load) and it changes frequency with the speed of rotation.

 

top....any ideas anyone?

 

hMm.... just a suggestion but maybe it could be that your wheel bearings are going bad? i'm sure you've checked your stub shaft because I've seen a stub shaft break once and the ride was not smooth at all. ummmm..... that's all I can think of right now until I find out more info from someone or something.