Hell yes I have questions... That goes against the grain of every Jeep prophecy I've read. Brilliant. Your basically bone stock 44s? How in the hell... Lol.. Such a contrast to what I've read. Why does such requirements make it so far?
Anything you would have done differently? Observations? Maintenance differences? You better not be on stock ball joints or I'll scream.. Lol
Your OP was asking about sleeving and trussing (and let's just throw in C gussets as well) so that was what I was addressing. The AXLE HOUSINGs were bone stone, absolutely. My basic build was buy a JKUR regear it and at the same time upgrade the ball joints (ProSteers in the first, Synergy in the second) and add RCV front axle shafts. I never broke anything and I never bent anything.
Rock crawling does not bend axles if you keep your brain turned on. About the only thing I avoided was excessive axle hop. If the front axle starts to hop like crazy, its time to stop and try a different line. Other than that, it was pretty much whatever it took to get over something. Bumping usually involves the rear axle, but when needed I bumped the front up and over something. Usually you can put a tire on a big ledge or rock and crawl up it. I have videos of me doing really tall and vertical ledges in Moab. The kind where your bumper hits first and the tires second.
Based on my years of wheeling, I think axle bending is a problem for people who like to do to high speed stuff. If you are going 40+ MPH and then hit a big dip or rock in the trail, the force of that impact can bend an axle. Another situation is jumping the jeep in the sand dunes. Landing on your front axle can certainly bend it. I have yet to see anyone bend an axle in low speed rock crawling. And I organize 2 Moab trips per year and have had as many as 15 rigs out on the trails. Nobody bent an axle, and at least a couple of guys are pretty damn hard on the throttle. Harder than I am and they have not bent an axle.
So I have a theory about why my experience "goes against the grain of every Jeep prophecy I've read".
Very few people bend an axle and then sleeve or truss it, would you agree? 99% of the people who sleeve and/or truss do it before the axle is actually bent. They spent $XXX on this upgrade and therefore are compelled to extoll the virtues of doing so, otherwise they would be forced to admit they wasted $XXX on something that was not needed. Its their way of rationalizing why THEY believed something they read on the internet or the sales hype that some manufacturer was spewing. THEY didn't make a bad decision! (They never make bad decisions....) THEY must have been right and thus feel empowered (perhaps compelled) to come on forums and exclaim that JK front axle tubes will bend just by having 37 inch tire within a 100' radius of the jeep. It helps them feel better about the money they spent on sleeves / trusses / gussets. (The whole bending Cs thing is an even bigger joke, but a whole other topic.)
Observations? Get yourself a good true know straight edge and check your axle tube periodically. That is the acid test.
Would I have done anything differently? I still have not found a ball joint I like. They all have positives and negatives. Not sure what I will do on the next JKUR if there ever is a next one. And I will not run RCV axles in the future. Sure, they are strong. I bought them primarily because I do a lot of wheeling in Moab and Moab can eat front u-joints. (Sometimes you just have to be locked and have a lot of steering input to make an obstacle.) But I hate the constant grease slinging they do. Shit gets everywhere. And the "Lifetime Warranty" doesn't include rebuilding the CV joint. If you run them long enough they will start to click. And then you need to rebuild the CV jonts. The kit from RCV is $100 per side and does not include the $40 tube of grease you will need to repack them. Pain in the ass.
One last thought. Many years ago I got into a brawl with my good buddy Eddie on his forum over the topic of running 37s on stock axle housings. It was a shit show, but even Dynatrac of all people jumped in and agreed with me, as long as you have "reasonable expectations". I am not sure exactly what Dynatrac meant by that as "reasonable" varies from person to person. But since Eddie was saying that 37s would bend a stock D44 driven down the freeway at 55 MPH, it was at least a modicum of common sense thrown into an otherwise completely moronic dialog.