Thanks for the videos and the consideration for your neighbors, I like the crickets. :) the power steering line runs up to the power steering cooler. If you have lines running up to right behind the brake master cylinder, then the truck has hydro boost. (I don't think you have hydro boost)
Here is a video of the power steering lines being replaced in a similar Chevrolet:
https://youtu.be/BGBUv5r9fk0
I have found some power steering hose replacement instructions in the diagrams below. I noticed this set up does not use a cooler which you can do as well, just add the new lines and leave the cooler out of it. Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.
Images (Click to make bigger)
Tuesday, August 16th, 2022 AT 5:44 PM