After all that work from myself and Mcdog's diligence on my behalf we were unable to crack the secret code of "The f**cking stuck-on Impeller."
We used: torque, heat gun, torque, torch, lots more torque while breaking 2 bench vises, busted knuckles, WD40, penetrating oil x 100, antiseize x 2, more torque, 2 and 3 foot pipe wrenches with 3 - 10 foot cheater bars with tons of torque and it all yielded not a damn thing. After two days of holding up my build I gave up and took it to a PWC shop. They had the thing for about 8 hours and decided it was easier to cut it off! Cost me $100 and hopefully my drive shaft isn't screwed. We'll see. I appreciate the input boys. I was ready to smash the whole pump with a sledge hammer a few days ago...farking POS.