My TRD PRO rear sway bar relation was high and low for about 5 years. It was inexpensive back then, installation was easy. Does not do much for cornering, but doesn't make the rear noticeably stiffer either. I was removing it a few times for winter offroading in deep snow, where articulation is the king. Installing back for summer.
Summer 2024 I had a 13ft aluminum canoe on roof rack, bed loaded with camping gear and 3000 miles ahead, mostly long gravel roads. Regretted I didn't put the sway bar back on, because the truck was a dangerously swaying barge.
Couple of weeks ago noticed creaking noises coming from back when starting off or braking. Turned out the bushing steel sleeves corroded where they touch the PU bushings, sway bar is no longer stout. The bar is also all chipped and rusty as hell. Took it off. For its price the proper rebuild is nonsense.
Now, I'm heading north w/ boat next summer again, and would love to have more stability. This time I think I'll give a try to Timbren SES. Have them on wife's Sequoia, they are good. I like the fact they are indestructible and require zero maintenance, unlike air bags. The suspension is tuned, as well as the truck has a few hundred pounds of extra goodies, but I think Timbrens can be shimmed to avoid engagement on unloaded or lightly loaded truck.