i own a 98 ford expedition and i want to put a fabtech 6 " lift on it it has the factory air ride all the way around i was going to put coil springs on and just front shocks the parts all bolt right up the only thing i was wonderin was what i do with the air lines and air compressor  there is a swith under my dash to turn it off  but it makes a check suspension light come on on my dash board  any suggestions   or does any one know if a check suspension light will fail me at the maryland emissions test ?  any help is appreciated thanks  

they also make a kit for the expeditions with rear factory air ride   so if anone knows how i can get rid of the front air shocks and still keep the rear air bags that would work to