Welcome Joe,
My 57 is a press fit, so I have to assume yours is the same. Its probably been on a long time so it dont wanna come off. Remove the nut and see if you can work the wheel back and forth a little. Pullers come in handy too. Its just a splined shaft. Good luck.
Jeff


"Do not walk behind me, for I may not lead. Do not walk ahead of me, for I may not follow. Do not walk beside me either. Just leave me alone, you're starting to freak me out."

1957 GMC 150