Help me locate this owner

So I just read what he has and man... I have no idea what half the stuff he’s talking about. Lol, time to research and educate myself.

 

What has confused you?

 

The notches and “Icon progressive AAL(overload removed)”

Also why he put a spacer just on the driver side? I’m assuming bc of weight?

 

The notch for the resi hose. They need to cut/notched as to not interfer with the fitting for the hose. It needs to be done correctly or the shock mount with eventually cause that piece to leak.
The aal insterd into the pack with the overload leaf removed out of the pack. This will provide lift but keep a certain softness to the ride. Limits how much weight you can now carry, but takes some of the harshness some bumps can provide.
The spacer only on one side is to help with the taco lean.... battery, driver and gas tank all on one side tends to make the truck lean 1/4 to 1/2 inch to the left.
Hope that helps.