All disc brake. 2:78 was common.3:08 also commonish. LSD optional.
You need to weld on mounting plates for leaf springs. Make the handbrake cable work on discs. Think you may need to change the master cylinder as well to suit discs. or I think you can convert the diff to drums but the axles may be different.
Basicly you don't get any real advantage from the disc brakes, so its easier to use a ute diff.