Vibration from rear

[fudge12]

While going around 35-40 mph, there is a noticeable vibration coming from the rear accompanied by the feeling that I am losing control of the car. Any ideas? Do these cars use U Joints and/or could it be the U joints?

Thanks

 

[LS4me]

Wheel bearing. Tie-rod ends (but that would manifest itself at all speeds).

 

[fudge12]

Estimate on how much the bearing and labor would cost?

 

[LS4me]

Estimate on how much the bearing and labor would cost?

Both wheels were ~$225 installed.

 

[fudge12]

Sounds good, did you replace the Rear wheel bearings?

 

[LS4me]

Sounds good, did you replace the Rear wheel bearings?

Not me! I had it done.

 

[cirelle]

Just jack up the rear and search for loose parts. If you don't do your own work, have your mech do it. Can't hide loose stuff. This has been a big hospital year for me, otherwise I would be doing the work myself.

 

[tireman]

bad tire

you may have a bad tire, broken belts or separation in the tire structure.

 

[joegr]

While going around 35-40 mph, there is a noticeable vibration coming from the rear accompanied by the feeling that I am losing control of the car. Any ideas? Do these cars use U Joints and/or could it be the U joints?

Thanks

The LS has one U-joint, and it's in the center of the drive shaft. The rear end uses CV joints. All that said, it sounds more like a tire problem to me. Easy to check. Move the back tires to the front and the front to the back. See if the problem moves too.

 

[fudge12]

Will rotate tires in tomorrow and see what happens. Thanks.

 

[fudge12]

Didn't get to rotate the tires today, but I did notice a faint thump/creek in the same place that I was feeling the vibration. What's funny is that there was no vibration on the way home, just the faint thumps/creeks that seem to occur when going over bumps.