I'm curious about that too.
I'm thinking about air bags cause this truck has a better ride than any other truck I've owned.
I want to keep the ride quality, and increase the load capacity.

 

its kinda hard for me to compare because when i put these on my factory shocks were wore out to the point where my truck felt like a boat, so when i changed them i could tell the difference right away. i would say that these are a little stiffer than stock when there isnt a load but my truck still rides comfortable.

 

I like these, when my rear Bilsteins need replacing I might try these.