sedan coupe & wagon diffs are tiny weak and crap fit a ute diff i think u will find their called a h190 23spline their got 2 small ears on the hottom of the center and a little tounge at the bottom of the pinion end same diff comes out in bluebirds 3.9s & 4.11s same center. reasonably strong ust dont abbuse ut or like any thing it will probably brake iv got a ute diff in my wagon same width used a ute tail shaft dusnt brake just blow heaps of gears i run 205/50/15s behind a off its chops a15