Topic: Good, good, good, good vibrations.....NOT!

[hammer]

Help!
My 99 Quest vibrates. Very subtle at all speeds but worse at 80 to 120 KPH. Not much felt in the steering wheel but very pronounced in the seats.  
This is the 2nd set of tires and had 3 tire balancings done, 2 alignments, rims checked for out of round, replaced slightly bent right drive axle and the rear struts replaced. After all of this it is the same. Tired of the dealer guessing at what is wrong.
Any ideas of what else I can check?

[articsteve]

This is the 2nd set of tires and had 3 tire balancings done,

Was the balancing done at different shops?  Could be that the hub is gone screwy.  The only way to really check the back wheels is to have the rear tires balanced on the car.  Very few people still do this or even have the spinner and weights.  Some places use a strobe light but those are BS.

[brick]

Doesn't sound like `Fun Fun Fun'.

[Smainville]

Find someone who has this machine the GSP9700, you can do a search from their site.  Good luck.

http://www.hunter.com/pub/product/balancer/index.htm