Clay, usually a CV going bad gives a clunking sound. Give this a try.

Get in a big parking lot. Drive your van in a really tight circle,
steering wheel to the locks. Do it right and left. This will unually
produce a knocking if a CV is bad.

However, all knocking is not CV's going bad. If you have any loose CV
bolts, it will allow the CV to work against the wheel, causing a strange
knocking noise as well.

Good luck.

John Rodgers
88 GL Driver

Clay Moore wrote:
> A few days ago, while slowing down i noticed a scraping noise,
> corresponding to
> the speed of the wheel. it sounds like its coming from the right rear.
> i wasnt sure what it was,
> today it started making the noise while accelerating too, no noise while
> driving and not under
> a load.  it would also go away if i pushed in the clutch.
>
> I think it must be the outer CV joint.   i cant figure out what else it
> would be.
>
> question is, can it be lubed in some way, since its a dry scraping noise
> or am i going to have to
> have it replaced. ?
>
> are there 4 of them, and should they all be replaced or lubed ?
>
> TIA
>