Use a mini or standard ball mount.  RS or a local CB or ham radio shop will
have one.  You may have to enlarge the existing hole and also drill 3 in a
pattern just around it, but you will be able to seal it up well enough to
totally eliminate corrosion.

You then have a standard 3/8 inch mount point that you can screw any standard
whip or loaded antenna into.  And it's rugged as hell.

tom

On 5 Mar 2004 at 16:27, Maynard Southard wrote:

>
> http://www.gis.net/~southard/Projects/DoubleCabRadio.htm
>
> This single hole is about 15mm (.60") in diameter.  Do they still make
> those old universal swivel-types that have a butterfly-wall-anchor-type
>  mechanism?  I really don't want to drill any new holes.  I'm happy to
> use something universal.  Anybody have any suggestions?
>
> Maynard

------
Tom Ring K0TAR, ex-WA2PHW  EN34hx
85 Westphalia GL Albert
96 Jetta GL The Intimidator
taring@taring.org

"It is better to go into a turn slow, and come out fast, than to go into a turn fast
and come out dead." Stirling Moss