Originally Posted by
SkyDog75
You (or someone) has already removed the locking. To remove the cup, the proper tool would be a pin spanner like the
Park Tool SPA-1. You can improvise, though. You just need something that'll fit in the holes so you can turn the cup counter-clockwise. I've used needlenose pliers in a pinch. Open 'em up, put the tips in two different holes on the cup, and turn. It might not be so easy with all that corrosion, though.
True. But I'd suggest you don't get carried away with improvisation. You might find a snap ring plier or an angle grinder flange wrench that will fit the holes. But you don't want to mangle them by hitting them with a punch or anything like that.