Bugger.
Just started to think about upgrading brake lines, so decided to see if rear cylinder bolts would come out, yep, you guessed, solid, even tried cutting a slot in them and using inpact driver, would not budge.
So, unless someone has a word of wisdom, all I can see to do is drill the heads off, and then as the bolts will be stuck in the cylinder, replace a perfectly working item.
I suppose I could try drilling them out, but I have never really been successful at doing that, then will have to tap the tread, which means buying the right size tap. Bolts are no issue as have loads.
Any suggestions ?????