1st real tow w/ my '17 F350 dually

This trip we took was just the DW and myself, fresh tank full (dry camping). Have noticed that the aux springs have made contact w/ the brackets, but never associated the gap as to what could be my problem. Next trip isn't for another week or so, but if my pea size brain recalls right, I don't think there was contact (enough weight) for brackets to sit on springs sitting still. Truck only squats about 2" or so.

Thanks for the replies gang. New world of duallies sure is an eye opener.