I think the op might be intending if the cost to go to a spring kit($2000?) is worth the cost and ride quality vs maintaining the air struts. Maybe it’s possible to just swap out the fronts and keep the rear air shocks? I’ve had a car with the leveling system and it’s the bees knees when hauling around a bunch of fat friends or biatches

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1993 e300
1995 e320
1994 e320
2006 s500 4matic
2004 Jeep wj overland
2001 Ducati 748
2004 Honda shadow aero