Hello Trowe....If you want to Tame the Air Suspension on your Truck contact : Don Yale at Donvel...Web:
http://www.donvel.com....He help Tame my Peterbilt....He works mostly with class 7/8 Trucks, but he also does some MDT's.....Great person to deal with and very conscientious.....He is located in Gladewater,Tx......Don's system works and it does not change the original Suspension Parts...He can help you with the Front Steer Axles, Cab Air, Rear Air Suspension and Air Ride Seats......Hope this Info Helps.......Jim