Thanks Guys,

I'm going to just go for it. Tighten those nuts down and hope that
indeed the shaft metal does cut into the pot metal. I'll know soon enough.

John

John Rodgers
Clayartist and Moldmaker
88'GL VW Bus Driver
Chelsea, AL
Http://www.moldhaus.com

On 9/19/2010 5:16 PM, John Rodgers wrote:
>  I recently acquired a pair of replacement wiper arms with the airfoil
> on them to replace the ones I have with no airfoil.  When readying to
> install them, I discovered there is no knurling on the inside of the new
> wiper arms where the knurled wiper shaft goes through,  as there is in
> the ones I took off. In the replacements, it appears they have corroded
> away, been worn off by abuse(nut not tight) or simply were never there.
> In any case, without the knurling, it would appear that slipping would
> be an ongoing problem. Anyone have any ideas as to how to address this
> issue?
>
> Thanks,
>
> John
>
> --
> John Rodgers
> Clayartist and Moldmaker
> 88'GL VW Bus Driver
> Chelsea, AL
> Http://www.moldhaus.com
>
>