When I first started trying to tap this starter out, I sprayed with wd40 and tried prying, but it only laughed at me... half hour of more spray and gentle tapping didn't do it... the next day, after being drenched in wd40 overnight, I resorted to the bigger hammer, which proves with a big enough hammer you can break anything...
Hope today goes better... if not, I may have a lot of parts available for sale!