I was told that Superlift Suspension air lift kits or Helper springs cause the ABS brakes to not respond. Is ths true? Or a dealer lied . I was told about an add on to the hitch that is better. Has any one tryed this air lift kit and had no problem? Has any one used Hell-Ya Hitch Helper did keep the nose heavy trailer from dragging the jack again and the truck at normal hight? please look at thi 600 dollar wonder. http://hell-ya.com/