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Both spindle pins in my car were completely seized - no amount of anything was getting them out. I soaked them in a pan of PB blaster, tried twisting the pin with a 4 foot cheater bar attached to a pipe wrench, mini sledge while still on the car, air chisel, etc, etc. What finally worked? Putting the entire hub in the freezer for 48 hours, hitting the cast hub section with an oxy/acetylene torch and slamming the hell out of it with a punch and 10 pound sledge hammer. I drilled a hole in the center of the pin so that a punch would rest inside with out flopping around while I hit it. Had a buddy hold the punch in place with a pipe wrench so I would accidentally wack his hand with the sledge. Just heat alone didn't work, but I think the combination of the pin being frozen (slightly contracted) and heating the outside cast (slightly expanded) freed it just enough to break free. Just be sure to start hitting before the heat makes it's way to the pin. I must have hit the thing 50 times before it moved a hair - and once it did, we were only able to move it another 1/4 inch before we gave up for the day. Put it back in the freezer for 48 hours and started again until it eventually made it's way out. Just thought I'd share my story in case it helps anyone out there!