Just a comment for all those faced with this situation. Someone who owned my WD prior to me had reinstalled these brake pins after coating them with a heavy grease, it was a sticky grease, perhaps wheel bearing? When I had to replace my brake shoes recently I was all prepared to heat, drill, pound and pull! To my great delight the pins came out with pulling with my fingers!
Point made is when you reinstall them, try greasing them! I think perhaps a high temp grease may be best to minimize melting from heat.
just an idea