what are the best disk brakes that bolt on to an xw and replace the front drums

I'm pretty sure that an XC disc brake set up would fit straight in.
Can anyone confirm this?

i would prefer something that is really common in wreckers and could an ed xr8 diff be made to fit XW's

an ED diff will fit if you have the spring saddles welded onto the diff, although you'll haveto get some custom rims made due to the difference in width betwen the XW-XY and XA-EL/XH rear track

to make things easier, try to find a diff from an XG/XH XR6/8 ute, they still have leaf springs at the same spacing as the XW/s, although the width of the track will still be an issue