So according to that thread i understand it as us having the modified 12 bolt. Good find Zeus but yeah it doesn't completely answer it in my mind. Here's another somewhat weird theory, if the modified is stronger then if i were isuzu it'd be in the tod rigs before any other rigs. Kinda like the majority of v8 full time 4wd Jeep Grand Cherokees have the D44 rear and the six cylinder have the D35. Yeah unrelated to isuzu but still a theory. And when ya think about it if they were in the tod troopers then it wouldn't be any extra retooling or anything for isuzu to throw them under our tod VX's. So maybe the US spec has the modified and the JDM's have the standard by that logic. Maybe i'm over complicating this.