between 35-70 mph makes humming kinda roaring sound in rear of car doesn't change much while turning dosent change while letting off of gas I jacked it up no 12-6 oclock movement but does have 3-9 oclock movement due to loose tie rod ends on both sides started it while in air quiet as a mouse from 0-70 mph it has 2010 grand sport wheels and nitto invo tires 19" im a newbie on vettes any help greatly appreciated

 

its a4 3.15 gears

 

Is it one sid or both? I had similar noise, and ended up changing my rear wheel hub bearings, noise went away.

 

The rear hub bearings would be my guess too.

 

cant pin point which side kinda sounds like both I know front tires has minor cupping on inside . and if I go over a dip it stops for a second
I guess it unloads for a second prob is bearings the rear tires look good they are nitto 19" 305/35/19 I think

 

How many miles on the car?

My '01 coupe started making a "roaring" sound a while back. The experts here immediately said, "wheel bearings", but I find it hard to believe that hub bearings would get loud (in my case) after only 20,000 miles. I'm thinking more like tires....

 

car has 175000 lol bought it from an older guy that used it for daily driver and has been well taken care of

 

I think a lot of it is im used to my 08 Silverado its extremely quiet on inside this is my first vette if u roll windows down u dot hear anything

 

Had the same thing in my SRX.....rear wheel hub. Car was under warranty. I's expensive. Get a manual and do them yourself.

 

The replacement procedure is not difficult, I did mine myself. If you have a reputable shop, would be the way to go if you don't have the tools or a place to pull the rear hubs off?
If it is the bearings, I would suggest a non eBay cheapie set.

 

If I read this correctly, you're suggesting the CHEAP parts????

 

im a mechanic by trade just haven't worked on any later model vettes most bearings ive dealt with changes while turning unless its both bearings lol and make some noise on the stands and these don't . I was thinkin bearings or possibly these 14" wide tires but they look good. soon as I get this fixed its time to get it a little quicker I love this vette but kinda miss my 65 elcamino 11 sec street car that I trader for it but vette 26 mpg elcamino 11 mpg with no air lol thnx guys for the input

 

I just replaced my tires that were worn thinking that was the noise you have described. The noise is still there, and now seems louder (because of less noise with the new tires). I'll be changing the rear bearings hoping that its not a CV. 93k on my car by the way.

Mark

 

It's easy to check the lube in the diff. I would at least take a look.