They can be near impossible to get the wheels off sometimes. I had to replace the shaft bearings on a 5XL recently and from memory I ended up cutting the bottom of the frame, below the bearing out so I could remove the shaft complete, the bearing housings had all been chewed out anyway so had to be rebuilt. Then I was lucky the stuck wheel was on the park brake side so I drilled and tapped it in 4 places and was then able to use these studs to push the wheel off
