Help with removing stuck pinion yoke

So my son picks up a 8 3/4 sure grip carrier assembly to replace his open with, but there was evidence of the pinion seal leaking so we went to replace it but the yoke is stuck, we tried three different pullers, lots of penetrating fluid , and oxy/ acly heat, no luck so I take it to a machine shop I use periodically but he has the same issue and suggest we cut it off, I suggested maybe he uses a bearing splitter and his 100 ton press with blocks but he says something will break, probably the yoke, so before I cut it off and then try to locate another yoke, any tricks I've missed?