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.