I’m gonna be hauling a trailer at least 4 days a week for work now, and I was contemplating adding some air bags/springs to the rear of my truck. Currently it has a rough country 6” lift on it, blocks in the rear, but when I hook my current 16’ car hauler up to it, it squats pretty good in the rear even unloaded. I’ve seen a few kits out there but I’m sure they are for factory ride height applications. I’ve read I’ll need to add some sort of block or spacer to the bags in order to make them work? Found this, 4" Air Suspension Spacer Kit | Pacbrake but I’m not sure if that’s what I need?