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Kinda hard to see but it looks you have tapered cones to remove from around the studs before the hub will come off.
Gotta ask though, is that threaded on the driveshaft? Like maybe you have to pull the keystock out and unthread the spindle off the axle?
Not much time to work on this today due to entertaining elderly in-laws on Father's Day but I finally got back to it and Progress!! Over the last couple of days I scrounged time to modify my heavy puller so that the wings would fit the 3/4" studs.
View attachment 470434
And make new nuts. The 1-1/2"hex lug nuts were way too big to fit inside the puller wings so I made some 1" hex nuts. Left hand thread so I bought a tap to cut the threads.View attachment 470436
Tonight I finished up the nuts and got it all together and tightened up. Really tightened!View attachment 470437
Then switched to the hammer wing accessory to the puller and coaxed it a bit with a 4lb hammer.
View attachment 470438
And after a few licks with the hammer, it finally broke free. No heat necessary (though that was going to be the next option)
View attachment 470439 Thankfully, no mystery items under there, just a very wedged and mildly corroded tapered shaft end. Underneath is a big castle nut which I presume is a bearing retainer that I may have to create a spanner wrench for. Lots more to do but at least I'm moving forward. On the bright side, the brake shoes are oily enough they should last a long time
It's a relief to get past this part. On a side note, Dealing with the left hand threads on the studs has been interesting. Even though I KNOW they're left hand, the righty-tighty, lefty loosey is so heavily ingrained I found myself repeatedly turning things the wrong way LOL.
Now to get the axle out (in two pieces I fear). THEN the challenge of figuring out how to repair or replace. Finding a replacement is likely to be a needle in a haystack proposition. I don't suppose there's some master database of axles that could be searched based on size, length, splines, ends, etc. Depending on the nature of the break, welding *might* be a possibility though welding alloy steel successfully is a bit dicey. There's the option of making one from scratch but that's in the "Just because you can, doesn't mean you should" category.
It's all conjecture until I get further in. Hopefully I'll get somewhere on this before the end of summer. I have things I could use it for