I am towing a utility trailer with tongue weight, etc., all within spec. Any sort of load, however, and the rear of my 2001 V70xc dips. Not a big deal except that oncoming motorists all think my brights are on because of the tilt. Was wondering if there is an air-shock, or some sort of leveling strut that y'all would recommend to level out the car. The trailer sits atop a 6.5" stinger/hitch ball ... so it is leveled just fine.