Gday guys just wondering if there are any issues putting a ba xr8 ute diff into a ba standard 6 cyl ute? Or is it a no go?? Any feedback much appreciated!

Can't see why not? the suspension set up is no different? you would just have to make sure that the uni joint flange on your tailshaft would fit your diff. Do you know the ratio? if it is a 2.73 or something like that, you may force the engine to labour a little?