Been trying to solve this for a couple weeks now. Getting a resonance at 65-73 mph but I cant tell where it is coming from and I'm not getting any ABS or any other codes. Car is 2003 SSEI and it has 201,000 mile on it, I rebuilt the transmission with lots and lots of parts from tripledgeperformance 2 years ago. The lower front control arms(moog), front struts(monroe), front wheel bearings(timken) and tie rod ends have all been replaced and the car has been aligned. I replaced the driver CV axle with one from Morad and vibration is still there. Putting the car in neutral @ 70mph down hill doesn't make a difference, I also checked my motor/tranny mounts and they are fine. I have a custom front tranny mount similar to a large heavy swaybar end link, because H body mounts are weak.
If I turn the wheel a small amount to the left(70mph) the vibration stops, but turning the wheel to the right does nothing.
I'm left with the following!
- right CV axle
- one of my tires is bad
- rear wheel bearings(anyone ever have one of these go bad?)
- something in the transmission
Any suggestions?
