[54blackhornet]

I only mentioned that because the bolts look pretty rusted. They are known to snap off if they have not been removed in decades. I would start soaking them in PB Blaster daily and give them a slight tap afterwards. I did this for weeks while working on other projects. Every time I walked by I gave them a bit of PB then a tap. I eventually got them out. Use a good quality anti seeze on reassembly.