Hello there! I'm Eurocar ! I will try to assist you as much as I can. Quality research = Quality answer!!
the front struts have an air leak causing the sagging
usually the fitting where the air line hooks to the strut corrodes and then leaks
strut replacement will be needed!!!
best way to find leaks is to spray soapy water on the fittings to locate the leaks!!
hello just checking in for any progress?