Love the Firestone Bags!!! They work great for me, I run 40-42 PSI and the Gladiator actually ride better!!! Redarc trailer control, 4.88 gears and a well-balanced trailer. Install is super easy, suck all the air out of the bags, put the cap and use zip ties to fold over. I have done few that way with no problems at all. Enjoy....
I pull trailers all the time. I have four of them and then I have a boat. Been doing it since 2019 and 212K miles with my JT.
For four years, I've had the Airlift HD bags for the Ram 1500 on my Gladiator. They're a little bit longer in case you decide on a lift. But, because they're HD, they're a little bit stronger. But they also ride a little bit stiffer as well. https://www.airliftcompany.com/shop/60818HD
Last year, I changed over to the Airlift Loadlifter Air Spring. They help with more weight. When aired up they work good, but you can't leave them aired up for everyday use. They're stiff with no weight or when not pulling any weight. https://www.airliftcompany.com/shop/57415
Either option is a good choice. And if you ever decide to do a little harder wheeling, you still can.
I had the Airlift 1000's for a couple of years and they worked great. I swapped out my rear springs for taller ones and upgraded to the Airlift 1000HD's. They continue to ride great, support tons of weight when needed, and do not hamper suspension travel. As far as I'm concerned, every pickup should come with rear airbags right from the factory.
I’ve been running Airlift 1000s for a few years inside 2-inch Mopar lift springs. Stiffen when needed for load. Out of the way when flexing for wheeling. Easier than expected install. No issues at all. Great addition.