[Black13GT]

I am interested in adding some overloads of some sort to our 13 FX4. It has a Rancho 4" lift and 35" tires. We don't haul much in it but occasionally we take it to the feed mill and get feed. I just want to give it a little boost so it won't squat in the rear when loaded. In the past, I used helper springs on some of my trucks. I don't know much about air bags, but that might be the way to go, and I assume you have to put spacers that equal the lift on them when installing. Any input would be appreciated. Its my wife's truck.

thanks
Steve