07 Avalanche LTZ. Thinking either of these options but need to know a few things from the pros first. First things first i use my Avy as a truck for pulling a Car hauler/Boat/ Quad trailer and my 26ft holiday trailer. Always have stuff in the box. I replaced my rear shocks and compressor 2 yrs ago when i purchased the truck and love the auto level after dropping trailer on hitch or load in box. With that being said i would ideally like to do a 2/3 drop and roll 22'' rims so i can still use my truck for what i use it for now without issues. Yes i know all of you will say 24" or 26" and a 3/4 drop scraping all the way home. Would love to but here in Alberta Canada roads reject 24'' or more and i don't want to be zig zagging all over the road avoiding potholes. Id assume full DJM kit with lower control arms and rear springs. Or Belltech with Spindles and springs. I am unsure if there is a way to do this and still utilize my factory rear air shocks by using a lower mount relocate. If not then probably get rear air bag helper installed once i remove factory stuff. Then bypass the factory crap so my dash is not a flashing xmas tree. Would i ? Should i replace factory shocks and struts in either case or what? I am Hoping maybe all you pros will chime in and shed some light and wisdom. Thanks in advance for any help and info.