I'm new to the forum starting today. My situation is similar to VAredRAM's except that I have an '09 Ram 3500HD 4WD SRW pickup. I made an assumption that I'd be able to carry the AF990 w/o any issues...
Yep, air pressure helped me. I love free and easy fixes! I went from about 60 to 20 lbs and thats with a trailer.Now, given that, we all adjust our individual rigs to an inflation that works best. You dont want to adjust for headlite aim, stock ride height, ect. Like most said, enough to help the suspension but not overpower it. Good luck!