A Regulator Problem

[wxman1]

Several months ago I reworked my dash and installed an Autometer voltmeter among other
things. I noticed that the voltmeter frequently indicated 14-17 volts. The meter is connected
to the 12v unfused ignition slot on the fuse panel. The truck was running fine, but I always
wondered about whether on not the regultaor was defective. A couple weeks ago, a friend
of mine, who should know what he's talking about, told me that the 14-17 volts was not normal
and that the regulator probably needed to be changed.

So, off I go to AutoZone. The regultaor in the vehicle is basically a retangular metal can
with a relay and other electronics inside. The new regulator is about half as tall and is, apparently, solid state. The old regulator was electrically isolated from the radiator core
support that it is mounted to, so I did the new one the same way. However, the AutoZone
guy (who has not steered me wrong before) says the replacement regulator is supposed
to be mounted in contact with the core support (that it is NOT electrically isolated).

Anybody ever replace their regulator and run into this problem?

Jim
Mt Juliet