Friggin pinion nut not breaking loose....

Impact wrench!
Gonna need a big one and a big line.... But the right impact will end this conversation..

JW
I'm old. I don't think the op has a compressor.
you guy's must have grown up with a shop and all the tools needed to do things the easy way. lol
Even with a big *** compressor and hi torque impact at my disposal, sometimes I still don't screw around and grab the jack handle. I even work outside in the gravel sometimes just to relive my youth. :D