The Gen 2 kit is completely different than the Gen 3 due to the leaf springs vs the coil springs. The Gen 3 should ride and work much better.
Oh, sorry! CACRaptor is correct! I didn't realize this was the Gen3 thread. The coil helpers should be fine in the 3rd gen!
I forgot to say a couple things to those that are interested in this: 1) If you're going to hook up an onboard compressor, make a connection point in your air lines to connect an air hose to air up tires and such. It's easy to do and the air bags are pretty much little compressor tanks. 2) You don't need to buy a compressor kit unless you want to. I used to have the Wireless AirOne kit, and I loved it, but it's expensive.
I set up my own compressor and relief solenoid system for less than half the cost of AirLift compressor kits. I connected the compressor (a used AirLift 16060) to a relay that was triggered by upfitter switch 5 and connected a relief solenoid to switch 6. Note: The compressor uses 12 amps so you'll have to use a relay if you're going to use one of the higher switches with lower ratings. You could put the compressor on one of the higher amperage switches, but I already had lights on 1-3, so I just used a relay connected to the battery.
I got the solenoid from amazon for $10 and 3D printed a box/mount for it. Happy to share the print file if anyone is interested.
Please excuse my hideous wiring. It was 105° outside and I was tired. I'll pretty it up later.