the later model utes came out with the H165, they're the same diff centre as out of a Bluebird but the housing is shorter, Depending on what engine you're running, i assume that its an A series, the stock diff will do the job unless you do burnouts all the time! I had a H165(ute diff) in my coupe that had a CA18DET it held up fine, even though it was an open centre.

Unless your talking about an LSD, that a different story.