I have a 2005 2500HD that's fully loaded. I want to lift it like 1-2 inches but it don't want to lose a lot of gross carrying weight and I want to be able to adjust it up and down if possible.. Any suggestions?

 

Well only option for 1-2" of adjustable lift is crankin your torsion keys and new front shocks

 

The only problem with adjusting any kind of lift like this is that everytime you adjust it you should have the truck realigned. Crank your keys to the desired height and get it aligned and leave it alone. Like Country said get new longer shocks or get shock extensions.