About the air springs what ones are you guys using? I am going to put them on a 03 3500 SRW front and rear and on a 03 2500 rear only. I want to get the tank setup and all, which is the best way to go and where can I buy them. Also I have the 2" leveling kit on the 3500, would it stay on or would the air springs basically take care of it? I also pull heavy loads with both so I am looking for a heavy set. Do I leave the front coils on with the ones on the front, or so the air bags go on the inside? Websites/part numbers would be greatly appreciated. Thanks in advance, Jeremy