That'd be why it won't come out with an impact or my biggest hammer thenGet some new bolts. They are a 16mm thread with a 17mm shoulder and are a bastid to shift and keep usable. The shoulder is an interference fit and a git when Rusty......
It won't spin at all so my thought is to drill it out at the point where I find myself needing the hub off.
It's a to do job once I get a proper drive as I hate jacking it on my current mess need to get it on ramps today after it slipped off the jack when lowering it yesterday post driveshaft reinstall