I posted on the LC board and was told, "They are fine spline pinion, 3.7 diffs. They will not fit your mini." I'm looking for 4.56 or 4.88, but I know the high pinions are highly sought after. The diff housings looked exactly like the 4 cylinder housings though, with 3 fins and they didn't look high pinion. Are these something I want to grab?