It isn't the easiest project.
Don't use factory bags, get Firestone or Air Ride
First make sure the bags are warm, lay in sun for a while. Then roll them up at a slight angle even straight will do. They must be really rolled up tight so as to fit through the hole in the bottom of the A frame. I then used a cable tie to hold it rolled up. Then lubricate them good with liquid dish soap. Once in cut the cable tie.
Make sure you get the old rubber washers out of the a frame and the upper control arm. Make sure you put the new ones in.
Just for info I went through several sets and final decided to put variable rate coil springs in that I got from Henderson lineup. Took care of issues.
Remember the air inlet goes down.