Thermostat Housing Gaskets

["Terry Smith" <terryrs@adelphia.net>]

I know, this is a dinky, wee, teey detail.  My head gasket set came with two
gaskets for the thermostat housing unit.  One gasket is thick, the other is
thin(ner).  One goes with the thermostat where the housing splits.  The other
goes to the block where the whole assembly bolts down.

Does it make any difference which goes where?  Why the heck would they be
different thicknesses anyway?

Terry Smith
'59 TR3A