Help Location HighSpeed Blower Relay

[sara76]

I have a 1972 C10 with Factory A/C. The high speed of the blower motor is not working. I did some reading and searching in the forums, and it seems there should be a high speed blower motor relay behind the glovebox. I removed the glovebox and all I am seeing is what I believe to be the resistor. I looked around a lot behind / under dash, and I do see two relays, both right next to the fuse panel. It I understand correctly-this would not be the factory location for the high speed blower relay, but could one of these be it??

See attached pictures-First is right behind the glovebox insert, and what I believe is the resistor, the second are 2 misc relays near fuse panel...

Thanks,

Sara

https://drive.google.com/file/d/1dqC...ew?usp=sharing

https://drive.google.com/file/d/1-SG...ew?usp=sharing