anyone having problems with the rear driver side shaking on '09 tl at any speeds?
ive had brand new tired & rims put on, times realigned, rotated, balanced 3 times in one week, also have had the road force balance done 2 times, and a wheel bearing replaced already.
can any one think of anything else that could be wrong?

 

Depending on which 4G TL trim you have.
the vibration could be coming from you torque converter or your rear diff.
experienced that before and had my torque converter changed on my 2G TL.
best thing to do is put your stock wheels back on and take it in to your acura dealer and let them diagnose it.
they often will tell you to put your stock parts back on because they will use that as an excuse.
also acura will ask techs to take pictures for them, if they see aftermarket parts. they may blackflag your vehicle.

 

I have the base model with front wheel drive. Everything is still stock on the car.