Pickup truck suspension question

[American Nomad Patriot]

I have the Ride-Rite brand and very pleased with them over the last two years. I still have one more pair that are brand new, plus brackets, compressor, gauges, wire harness, switch etc. I'm saving them to install on my bus since it will be on a E350-E450 frame. I have learned from yall here that I will need a pair for the front as well. Plus get everything "plumbed and wired" to use the bags separately. Thanks Yall !!