I am new to this forum, so I'm not sure where to post this so I will try it here.
I own a 1999 F-350 Crew Cab 4X4 with a power stroke diesel. The left front springs have sagged and the ride height is about 2" lower than the right side. The left rear is about 1/2" lower than the right rear. I was thinking I would get air bags for the rear. Does anyone have a recommendation on what to do about the front. I want to keep the stock ride height or maybe level the front to the stock rear height. Any ideas would be appreciated.

Not sure what your towing, but I would suggest re-arcing the front and rear springs to a facory ride height and add a leaf to the fronts to support the 7.3. I would get it right prior to doing any changes like air bags. Buy going straight to the air bags on the rear you would be just masking the original problem, which was the truck was not level.