Got the 4 nuts off.. but cant seem to seperate the shafts from the axel stubs. Any tips?

The bolts should come off as well. Get a block of wood or a rubber mallet, it should pop off.

Yes rust and corrosion often bind the two together with a bit of hammering like Darrel said it should come loose.

Dropkick, Here some interesting stub axle info. Thought I'd pass it on.

Good Luck,

Craig

http://www.magshooterz.com/280z_stub_axle_swap.htm

http://www.atlanticz.ca/zclub/techtips/rearwheelbearings/index.html

R&R-ing stub axles can develop some interesting 4 letter words.

The bolts are stuck too. I didnt want to try and pry against the backing plate to pop them out. I've been soaking them with PB blaster and trying to knock the shaft back towards the diff. Maybe a few shots from the side will loosen it up.

2 x4 and and 8 lb sledge did wonders.