Hub caps spinning on the wheel is also not uncommon.  This is caused by
the rims flexing.  Could be that the bolts are not torqued properly.
On GM cars from the mid 80's this was an everyday event.

            Eric                   86-VW4x4
            vw4x4@fyi.net          86-SS Syncro
            Pittsburgh, PA USA     1936-Chrysler
                                   92-Jetta GWC
            www.fyi.net/~vw4x4/vw4x4.htm

On Mon, 9 Feb 2004, Mark G wrote:

> Be careful! Before I bought my 14" alloys, I had some 14" cheesy hubcaps from Pep Boys. One day, while crusing down the road, those cheap hubcaps "spun" inside the steel wheel and actually sheared off the front left tire valve, causing a quick dump of all air in the tire. (Like, all air gone in a few seconds.) Thank goodness I was just driving down a residential street and wasn't on the freeway. (Or with the kids in the van.) This could have been incredibly ugly. Beware of cheap hubcaps.
>
>
> Mark Garcia
> Alhambra, CA
> So Cal VW Campers
> http://groups.yahoo.com/group/SoCalVWCampers/
>
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