what you mean by helper springs or air bags?

 

Well, i see you got a reciever on the back there. If you got a 2.5" kit that would set you backwards slightly, it will only get worse when you are towing something. I'd hook up to whatever you tow often and see how she sits. I personally can't stand the backward lean look when I'm towing something which is why I purchased and installed airbags out back(they create ~.5"-1" lift over stock out back depending upon brand) another reason why i asked if you had them.

 

oh ok well i recently put that receiver on to mainly keep from being rear ended and damaging my bumper lol... i have been meaning to take it off but havent. i really dont haul anything or tow anything often. but it just bothers me that i still can notice the drag lol......

 

I put a 2.5" level on mine and the front did raise just under 2.5" and it still sits up a little higher in the rear even with my topper on the truck. I'm happy with mine though other than my 285s look tiny.