Before 17:30 today, I would have thought to remove a dana 300 yolk, I would remove the retaining nut and wack it a few times with a medium hammer. I smacked it with force for some time, to the point where I thought 1, this isn't working and 2, I'm going to F something up in the case. I put serious pressure to the yolk with a puller...nope. I did not use heat, I do not have a torch. I wonder if this (a torch) would have melted the seal (if I had a torch)? We have two spare 300s, I am thinking now It would be easier to swap the case, or may be the tail housing, assuming I could remove the yolk from one of those. I am trying to install a double carden and yolk from an XJ. I would love to get this buttoned up tomorrow. Any thoughts on removing this stubborn yolk?