The chassis will vibrate (not the steering wheel) from about 40-75 MPH, possibly a more narrow speed range, but you get the idea. It shows up randomly, doesn't show up constantly, and I can't do anything special to replicate it (i.e. accellerate, turn). It feels like the vibration is lessened the higher the speed gets, but nothing changes with the RPMs (up or down).

The car has 85xxx miles on it and is not lowered. I have had the dog bones flipped longer than the vibration has been there. I just rebalanced/rotated the tires and it took some of it away. I also replaced the front driver side hub (nice timkken unit!!) b/c I have been told it was worn by several shops, but that wasn't replaced due to the vibration, nor did it help/hurt (as expected).

I have done some reading, but can't find anything with my same symptoms. It seems like the CV axle(s) would be the problem if the vibration was only during acceleration or turning, but that's not the case. I'm just confused and don't want to just throw parts at it.

THANKS!