Easier method is to fill the crack on the outside where the pepples collect with a clear silicon caulk. No more pepples and problem solved.

good link I was going to do this myself

Thanks to all for the replies !... will be doing this over the next week.

I'm pretty sure there was never a TSB on this since all C6 models have this issue and was never fixed. They wouldn't issue a TSB just for removing the pebbles.

The guy that suggested using silicone was talking about cutting a small hole in the tip of the silicone tube - no hole drilling needed on the car. Just apply a seam of silicone right where the pebbles accumulate. Not sure why he recommended black silicone (unless you have a black car). I used clear silicone.

Problem with using silicone is the rocks still get into the fender, you just can not see them. The weather stripping method keeps the rocks from getting into the fender cavity. Also I think this is only a problem with wide body cars Z06, GS & ZR1. GM did not change inner fender design for wide body. Would have been nice if it did not need fix? maybe C7 is the fix.

Yes, the problem is only with wide bodies. I also tried the weather stripping method and that didn't work so well for me. The problem is that the weather stripping doesn't totally seal the gap (unless you really stuff a lot of it in there and pack it really tight which is difficult to do). So I am using a combination of the two methods which works for me.

Sorry guys I have been offline. I do not have it but I have seen it. My service advisor showed it to me and fixed my 07Z06 and my 09ZR. He also fixed my friends 13 GS. If you go and complain about it they should be able to find the TSB.

INFORMATION

Bulletin No.: 11-08-65-001A

Date: June 22, 2011

Subject: Information on Small Rocks, Sand and Gravel (Road Debris) Trapped Between Quarter Panel and Rocker Panel and Installing Adhesive Back Shim Stock

Models:
2005-2011 Chevrolet Corvette
Built Prior to VIN Breakpoint B5107578

Supercede:
This bulletin is being revised to update the repair information. Please discard Corporate Bulletin Number 11-08-65-001 (Section 08 - Body and Accessories).


Some customers may comment that road debris has found its way in between the outer quarter panel and rocker, and is visible in the gap between the two panels. This condition may be caused by debris being carried up by the tires and collecting in the gap between the panels. An example of this condition is shown in the grap [...]

Quick can you post the rest of the TSB? Couldn't find it on google.

I opened up the quarter panel last night, wow was it dirty!

Gonna go buy some weather stripping.

It works, did the foam insert on my Z07 and no more problems. :thumbs:

Looks like they charge for that info...

http://forums.corvetteforum.com/alld...engineid=4047/

My car is at the dealer now I told them about the problem and they said they found the TSB and fixed it for me. I'm going to pick it up today.

Try to get a copy of the TSB so it can be posted here, although we do have the TSB number which should allow any dealer to find it.

I have a copy of the tsb but I can't post it showing the illustrations contained in it. If anyone here can post it, pm me your email and I'll get a copy to you.

On it :)

Just did this last week. Just undo 3 small bolts and shake/blow them out and then put a small bead of clear silicon to help prevent it from happening again.

Some one should save these, I don't know how long imgur will host images.

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Thank you Wolf!

+1 good stuff

You're welcome.

Personally I think this solution is better:

http://www.nakidparts.com/id22.html

I just used some weather stripping from Home Depot to fill in the gap from the wheel well to the quarter panel.

This would eliminate the source of the rocks, rather than just stopping them from falling all the way down to your lower sill.

If you follow the TSB you'll have about 5 lbs of rocks accumulate inside your panel. Doesn't seem kosher to me.