Thermostatic switch/1973 & Newer

["Walt Fogle" <foglew@hotmail.com>]

Hello:

Does anyone out there have a thermostatic switch mounted in-line on your 
bottom radiator hose?  If so, does a vacuum line from the intake manifold 
connect to the "M" tube on the switch?

I've only found one reference to this switch (in the Robert Bentley, Inc. 
MKIV & 1500 guide) which does not indicate much of anything, only how to 
remove and refit.

Any help would be appreciated!

Thanks and best regards,

Walt Fogle
'73 Pimento Red Spit