To remove the stock springs all I had to do was lift the back end of the truck with a jack and removed the springs, no disconecting of anything, I just removed the loose springs off their perch and put in the new ones.
This is correct. I'm sure they took a slight amount of force to get out though, yes? I had to pry my stock ones out with a long screwdriver(not real difficult). They will not fall out on their own. Imagine if you cut 1.5 coils off your stock springs, then lifted the truck, they'd just fall out on their own.