Funny thing I haven't changed a flat tire on my 2016 Ram nor on my old 2011 nor the 2005. All were duallys and I always run good tires. If you are running dually's and have good tires, it's likely a very rare event. I think my last flat on a pickup or SUV was 15 years ago or more. Now trailer tires are completely different, LOL.
Now on my 2016 I installed the 55 gallon replacement tank and the 30 gallon ''spare tire'' tanks made by Titan Tanks so lost my spare tire area.. my solution is the tire is chained into the bed of the truck or on a ''reciever hitch carrier which I can mount under the camper overhang or on the front of the truck too on the front hitch.