modifications to the interior wheel well are what's required and the only true improvement. What happens when there's a suspension fault and you've been relying solely on the rods to keep the body away from the tire...? you're screwed is what happens.
the irony is that all these people claim to want bigger tires, etc for why? off road? sure, but a nice even gravel road is not "off road" nor does it require any tire change. Thus, thinking the dumb rods will somehow do magical things like keep your tire out of the fender liner and body during high wheel articulation is not an actual solution. The rods do nothing more than what the system already allows for, thus, they really bring nothing to the table for the rough situations. What they will do perfectly is allow you to roll around town and make tight turns with bigger tires. But how silly is that when what they also do is equally reduce the ability to get into the lowest parking garages, or even your own at home if anything is on the roof.
Rods do not truly solve the 32" tire problem, only the physical mods will. 32" will rub on stuff without these mods. 31.5 i think will rub the frame horns, 31 will not rub anything. 31.5 you can do the mods yourself if you're handy. 32" mods get more annoyingly involved though. at that point you might as well go all the way and make 33" fit and step up to the 275/60-20 which is just under 33"
the problem with these 20" tires is that they are often wider so while the 275/55-20 is practically the same diameter as the highly used 265/65-18 size, it's wider tread causes problems with rubbing during turning that the narrower 265 gets away with clearing.
So, either male the necessary well covered physical modifications, or be happy with how capable it is with none of this crap to worry about.
here's the thing, 20' are ridiculous off road. if you were going to go through all the trouble to really make a proper fitting of a larger 20" tire.... which still only gives you a short sidewall, why not go the mile and make 18" wheels fit?! You could use the 20's for most of the time or for winter or sell them.
The IIDtool is used by people to simply set the suspension higher just like the rods would....but with the ability to undo it at any time and to reset the system if you do get into trouble. guess what, just tossing on rods and bigger tires is asking for a really annoying day if ever there's a problem.
Rods are like giving you a gun, loaded, with no safety switch, no training, and no way to unload it.... it's all fine until it isn't with zero backup plan.
By electronic interface, besides IIDtool, I mean LLAMS as noted before. It allows on demand while driving height changing. For example, my larger tires may scrub the fender liner on a big dip compression on normal height so off road at speed i can just leave it at +20mm or even +50mm but then on the highway for hours have it rolling at perfectly fine normal height which is safer and more sporty handling than full time lifted like these people seem to think is so cool. It's not cool, it's stupid.
I don't think it makes any sense to full time extend the air struts beyond their engineering and roll 7000-8000 lbs down the highway at 80 mph just because they're lazy to do these modifications. I'm tired of hearing about it too. Too many lazy poser cheapos.