On the way into work today I noticed a loud nose coming from the rear of the car, more like a grinding noise?? It seems to only happen when I'm taking a left turn??

Sounds like you need to get your differential checked out.

I seem to get the same type of noise. Took the car into the dealer to get it checked and they said they didnt find any problems. I told them " mostly taking a left turn". Mine reminds me of a wheel rubbing on something though but still a grinding noise. The dealer says to not turn so sharp.

I seem to get the same type of noise. Took the car into the dealer to get it checked and they said they didnt find any problems. I told them " mostly taking a left turn". Mine reminds me of a wheel rubbing on something though but still a grinding noise. The dealer says to not turn so sharp. That's a perfect example of why we should take our cars a Corvette tuner/ tech... Most dealerships(if you're lucky) will have one or maybe two guys that were especially trained to service Corvettes! Most Chevy techs aren't trained to service Corvettes. The dealership I bought my car from has a few of them(Corvette techs) because they sale/ service a lot of Corvettes.

Don't have this problem personally I have a buddy that I see at the Vette meets who has (had?) the same problem that he was talking about during the last run. Did you find the cause yet?

I would definitely take it to a shop to have them inspect the rear end. It is possible that they need to add some more of the limited slip additive into your diff fluid. I have had this issue on some other vehicles before where there was not enough of the limited slip additive and it caused a griding noise when making sharp turns. Have you had your diff. fluid changed recently? I have also noticed that sometimes the Quick Lube places are good at not replacing the fluid with enough additive.

Don't have this problem personally I have a buddy that I see at the Vette meets who has (had?) the same problem that he was talking about during the last run. Did you find the cause yet?

Took my car back to the dealer after I read in a forum about a recall for this noise. They changed some fluids and additives and it's gone now. I went with the recall paper in my hand so there was no charge.

Took my car back to the dealer after I read in a forum about a recall for this noise. They changed some fluids and additives and it's gone now. I went with the recall paper in my hand so there was no charge.
Here is that recall:
Rear Axle Chatter Shudder on Turns - keywords differential fluid noise oil #PIP3559 - (Sep 22, 2005)
Rear Axle Chatter Shudder on Turns
1999-2006 Chevrolet Corvette

2004-2006 Cadillac XLR

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:
Rear axle chatter or shudder on turns on Chevrolet Corvette and Cadillac XLR.

Recommendation/Instructions:
If this is the first complaint for this condition flush and fill the rear axle with P/N 89021669 (in Canada 89021670) gear lube and 4 ounces of the friction modifier additive P/N 01052358 (in Canada 992694).
If this is a repeat complaint or the condition persists after the flush and fill, replace the right and left rear axle clutch packs following published service procedures.
After clutch pack replacement use 1.6 l (1.69 qt) synthetic axle lubricant GM P/N 12378261 (Canadian P/N 10953455). and 4 ounces of the friction modifier additive P/N 01052358 (in Canada 992694).
Note: 2006 Z06 equipped vehicles require 2.55 l (2.70 qt) synthetic axle lubricant GM P/N 12378261 (Canadian P/N 10953455) and approximately 190 ml (6.4 oz) limited-slip differential lubricant additive GM P/N 1052358 (Canadian P/N 992694).

Note: Export vehicles use 2.01 l (2.12 qt) synthetic axle lubricant GM P/N 12378261 (Canadian P/N 10953455) and approximately 150 ml (5.1 oz) limited-slip differential lubricant additive GM P/N 1052358 (Canadian P/N 992694).

Once the axle fluid has been changed the car must be driven in 8 - 10 SLOW figure eights to work the fluid between the clutch plates.

Exactly what I thought they would do!