If it is anything like my 350F front axle, then you will need an impact gun. No other way around it. I bent some very stiff things (<drum roll> and I didn't use my butt end) before I put an impact gun on there. Go to a local shop if you don't have an impact gun. Whatever they charge will be easier than the cutting, grinding, cussing, and new parts purchase that you are on track for.
Camelman