I did the rough country leveling kit. Lot of guys do the bilstien(don’t know correct spelling but think that’s right) adjustable shocks maxed out and haven’t had issues
Look into alfaobd, costs around 100$ for software and obd adapter. I believe it will do a stationary desoot. Either way it’s a valuable tool for these trucks
Put air to it with an air compressor, if the truck goes up they are still installed, if you hear it leak out from under the frame then they are gone. I put a set inside the coil springs of mine and it looks like they go nowhere also lol