i forgot one thing if you do decide to run air make sure you run either four three way valves or eight singles dont to try to run a 2 three way or four singles because you will have a problem with it leaning

drg84 you must have had factory air on a car and never had a regular air ride system to dislike air so much, i just think it is impractical to have hydrolics. i just watch my friends cars every day blowing ball joints, hoses, pumps, and iv even seen batterys catching on fire,

with air you can have a system with 4 compressors and you only need one or two extra battries and never have a problem

another suggestion i have is use a regular pressure switch for like tour house air compressor instead of one that air ride companys sell because you have to use a selinoid to work multible compressors with a standuard air compressor pressure switch you dont need that it has a power switch so you can turn your compressors off if you go away like from your car for a few days you dont have to come back to a dead batterie if you have a slight leak which is not un common but not a problem. the air ride pressure swiches that companys sell i just dont like thats my opinion weather you like it or not!