99 350 Dually leveling kit HELP
and I'm looking for some help in leveling out my new to me 99' 350 4wd. Here's my situation; my rear axle currently has a 3.5" block in it and the rear fender measures out to 43.5". My front measure out to 38.5" leaving me with a 5" difference. Pretty sure it's a late 99 based on the PSD badge location on the door. Prefer to keep the cost reasonable but I don't mind paying for quality. Thank you for looking 



