[fauXGT]

The other issue I discovered is the Ranco heater thermostat.
Looking at all the pics I could find online, mine looked a bit different. I thought I had an internal temp sensor until I tore it apart. Nope. The little copper tube had snapped right at the bellows and is done. And apparently no one sells just that part...as far as I can find. "If that part is broken and the mysterious chemical/gas is gone... it's done, and the rest is salvageable for parts for other rebuidable stats." I was going to order the valve seal kit to rebuild it and get it functioning fully stock, but might just put the $10 seal part in, put in a manual coolant shutoff using the stock 'T' cable (for temp) and call it done. Looks stock but still functions as heat/defrost when needed, being will mostly be a non-winter driver (until I retire to Montana, which has the 4 seasons. Winter, winter, winter, and road construction).