To clarify I currently have an 02 F350 CrewCab with a 4" ProComp lift. I want lose the leaf springs and go to coil suspension for the better turning radius and better ride. I would like to maintain my 4" of lift. I considered getting a complete set of front and rear axles and components from a donor truck and then adding a lift. In the little research I have done psn (thanks to those who responded to my other post) I was advised that the newer axles have a different bolt pattern so I would also have to get new tires and wheels (or at least new wheels). Not so great of news since mine are less than a year old and close to $2400.00 My question is are there any 4" coil conversions available? I know I saw a 6" conversion designed for the leaf spring to coils but if I remember right it was $3K or more:doh:. Are there other options available to get me to the coil suspension?