agc

I have searched the forum and have come up with several things that could be causing my vibration problem. But I am not sure which one to tackle first. Here is my scenario:

About a couple of months ago, I had my strut bar replaced, due to a clunking noise I heard from the front end and vibration during higher speed (65-70 mph). After the strut bar was replaced, I noticed a vibration even more at around the same speed. I figure that my wheels/tires needed to be rebalanced. At the time I knew I was going to change out my wheels/tires to 18” (factory 16” were on the car), so I figured I wait till I get my new wheels instead of wasting money getting the 16” rebalanced. A couple of weeks ago I got new 18” wheels/tires for my car and felt the vibration at the steering wheel between 45-50 mph and again at 70+mph. I took the car back to get tire shop this weekend to get the wheels/tires rebalanced. Afterwards, I noticed that the vibration on the steering disappeared, but noticed that there was a vibration in the car (seats, floor pan, etc.). The vibration is in the front and the back seats and is pretty noticeable. Now I am not sure what it could be, I am thinking another rebalance and also read in the forum that it could be the transmission mount. I am not sure how to determine if it is the transmission mount, but I do feel a slight vibration in the shift **** when I accelerate. Can you guys help me out my car a 2000 LS with only 42k miles, this is driving me crazy

RA40

iTrader: (6)

The engine and tranny mounts are squished and may show signs of being torn and like. Do you get any vibration when braking?

Possibly one of the wheel weights has fallen off or one of the wheels the tire is excessively unbalanced.

PVSLS400

Might have a bent spindal also. mine was bent, and minor vibration was noticed