EZ Loader - Torsion Arm Replacement

2011 Skeeter ZX200 with a tandem axle EZ Loader trailer. Experiencing inner tire wear on the right-rear only. Contacted UFP and they sent me an entirely new assembly (hub and torsion arm put together) outside of warranty so that's awesome.

I got the big bolt off, but getting the old one off the spline has proven to be tough. How in the world do you go about pulling it off? I've whacked it from the rear quite a bit without any movement, and sprayed plenty of WD40 in there to help with the rust I can see.

Drive a wedge of some type into the gap. Pry bar or similar. Forget the WD40 and use penetrating oil.

Finally got the assembly off. Driving a punch into the bolt gap and whacking with a hammer did the trick.

Does this axle look bent? Could this be the reason the inner tire is wearing?
http://www.bbcboards.net/attachment....d=297779&stc=1http://www.bbcboards.net/attachment....d=297780&stc=1

Got in touch with Dennis at UFP/Dexter. Amazing customer service. He said you can't tell if that's bent because that sleeve isn't always symmetrical.

I've got the new torsion arm/hub assembly installed now. Hopefully this helps my inner tire wear.

May be able to tell by getting someone to hold a tape measurer at the center of the tire on the front axle measure across to the other and try that on the rear axle and compare the measurements. There are several different ways to measure it but that has worked for me in the past.