That's one thing I would never do is install any coil over conversion. Even if Eddie sold me the 1.5 lowered version for $25.00, I still would not swap it over. Air ride all the way. Mine has a 1 year old compressor from Eddie and front bags from a 98 and original rear air bags. Rides very smooth and when someone else rides with me that has never ridden in a Mark, they comment on how smooth the car rides. Maybe Lincoln should have made the air ride an option lol.
I just wonder how many Marks out there would have air and how many wouldn't, considering it probably would have been a guesstimated $3,000 option.
I wish i would have kept mine however at the time it was the second set of bags I was going to have to replace...it was a decision of frustration. I am not completely unhappy with the conversion especially since I added the suspension braces...swapping back to air ride is on my long list.