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Here are the parts I bought from Autozone if anyone wants to just go buy the parts off the shelf.
I built a simple heat sheild for the valve since the diaphragm faces the exhaust. Not sure if it is really needed but it didn't take long and I had the tin laying around.
Autozone part # 5954 or alternate 74809. My receipt shows the 5954 #.
I went with the white line since it only works on the max setting. Where I live the temperature fluctuates a lot during the day so I wanted to still have the ability to adjust the temperature in the other modes.
Choose the white or the red line depending on what your needs are and how you want it to work.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.