Tire rubbing fender . Looking for advice

I was under the impression that Tent2pod's 1 inch side to side difference was to the trailer frame not to the fender but can you confirm? 

Sorry about the mmmissing "m"....

For a mechanical designer these considerations are important but assuming the designer has done his homework they are pretty much hypothetical for the trailer owner.  Has anyone heard of someone who has bent the frame on their rPod in the way suggested by the stress model in the article?  If not, FR/Lippert have spread the moment load from the torsion axle to the frame out enough that it hasn't been a problem. 

Pretty much everything in engineering involves tradeoffs. Having the low ride height probably won out in their evaluation of the options, and in theory anyway the designers have adressed the drawbacks so they don't become our problems as owners. 

Where we unquestionably do have problems is the axles themselves. Here the designers have pushed the limits a bit too far IMHO. We have the known problem with bent axles which is worsened by the inboard mounting points to the frame. That can be adressed fairly easily by axle reinforcement which a couple of us have done now in different ways. 

Now we have tent2pod's issue which apparently is not a bent axle. So far we're just speculating about what it actually is, so I'm looking forward to a report once tent2pod gets to the bottom of it...

Re axle replacement,  I have one other reason why i would go with a heavier axle if faced with replacement. Better braking. I think the braking action on the 3500 lb axle brake assemblies is marginal for my rig. Even at full voltage output from my brake controller I'm not able to get my trailer wheels to lock up when following the setup procedure specified for my Prodigy P2, and that is with brand new propery burnished brakes. For sure you back off from that point so you don't actually get lockup, but ideally you want to be just short of that point in an emergency stop. 

The eTrailer tech I spoke to said this was pretty common with travel trailers. Anyone else have the same issue? 

The 5200 lb axles have 12x2 inch brakes vs the 3500 lb's 10x2.25. If I did my math right that should result in about 12% more stopping power.