So I put too much cardboard in front of the rad and she got a little warm. Pulled half the cardboard and she's good now. I went to check the rad fluid jug I carry in the box and it was frozen like a slushy, and it's mixed 50/50. That's supposed to be good to -45 or something. It did get to -38 according to the weather network on my phone, but those are usually taken at the airport where the asphalt keeps temps a little higher, so it was probably colder where I'm at.
Found my heater cord unplugged at the engine, the engine was a little hard to start...
And I made my way to the one wrecking yard we have left and picked up a rubber diaphragm for my clutch master cylinder. It's been missing since I bought the truck. I think that's why the clutch slave let go a couple months ago. Clutch fluid is hydrophilic, it attracts water, and then anything metal starts to rust.