SO I finally decided to jump headlong into finishing out my build and ordered a Toytec BOSS lift kit. I tow my 4800lb travel trailer a few times a year (it's my house on wheels, so it goes from storage to the RV park and such about 80 miles round trip) and currently with the stock suspension and Airlift bags I get about a 1/2" - 1" of sag which levels the truck (without the bags I was reversed raked pretty badly and didn't drive at night too much so as not to blind other drivers and that was from Seattle to SF, lesson learned there). When I installed the air bags it had me cut the spring seats (the little rubber cones inside the top of the springs) to as low as it would go. Adding a 2" higher spring, should i order new spring seats and cut them a notch or two higher to compensate for the taller spring so I don't get reverse rake when I tow? I know @Antman and a few others are lifted with airbags and tow (but i don't think it's nearly as much weight). Any input is appreciated.

I have the SAW 1.5" rear springs and the rubber cone is still cut. My airbags work the same as they did with the factory springs so I think you will be fine.

The airbags fill the voids between the spring wraps and that's what keeps them from compressing. They don't expand vertically very much at all.

Got it. Awesome. Thanks

^^^^^2x
Exactly how they work...............

So this just came to mind. With the taller spring wouldn't there be more voids to fill but the the airbag wouldn't fill it (extra coil turn because of the height)? So the longer spring seat would halt the vertical compression to the airbag of the voids that the bag couldn't fill? Or am I way off here?