I had a 2000 corvette did the same thing it is the propeller shaft
sliding in when it starts to move. If you notice the body also moves
up or down every so slightly when the car starts to move this is what
causes the propeller shaft to slide.The propeller shaft connects the
differential to the wheel. Its pops when there is torque on the shaft
and it turns. It is not a problem and it will stop if you drive it
offen.

On Thu, 17 Aug 2006 01:02:58 GMT, Matt Trivisonno
> wrote:

>Hi Everybody,
>
>I hear a popping sound from my C5 as the car rolls slowly backwards or
>forwards. The popping happens whether the car is in gear or not, or whether
>the brakes are on or not. It seems to be coming from the rear of the car. At
>first I thought there might be something caught on a wheel, or a nail in a
>tire, but there isn't. The sound has no rhythm and occurs randomly. I can't
>seem to hear it while driving above a few miles an hour - even in a parking
>garage where it is easy to hear sounds bouncing off the walls.
>
>From what little I have been able to find via Google, it sounds like it might
>be a problem with a bearing. Any thoughts?
>
>Thanks,
>Matt
>
>Posted with NewzToolz. Free RAR, PAR, and yEnc decoders.
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>
>