Not sure if I am right or not but...from what I have gleaned on the leveling.... This is not an Air system. In order for it to "level" you have to drive it a short distance for the fluid in the shock to actually begin to "adjust". My understanding is that this shock system is similar to Volvo and some GM products. The shocks are not regular shocks but can cost up to over $350 a pair... not $200/pair or less.. To be honest I wish it were more like my 1990 DeVille which had auto-air adjust shocks... You could feel the car rise when loaded and key was on BUT...this is what it is... I have more of an issue with no one able to ACTUALLY say... they DON'T know jack crap about the towing package and it seems that it isn't being advertised right in the first place... 5000# my arse and tongue weight of 351# WHISKEY TANGO FOXTROT!!!!