Just for curiosity, are you running any Lockers in the front. The back Diff is standard LSD? Mine is running Open Diffs. At some, I will probably look for a 2nd hand LSD Rear Diff.
Are you guys still off roadijg using the Jackaroo? I am in Malaysia having a 4JG2 3.1 Diesel, we call it a Isuzu Trooper here. Surprisingly, there are quite a bit of brand new Spare Parts as I hardly use anything used as I do a fair share of Medium Trails like you guys. Anyway, by any chance if you coming to Malaysia or Singapore, give me buzz.
If i was to do it again, i'd probably go 2.5" from turbo back, possibly no muffler even. 3" was too big. And yes, when tgis video was taken, it had the 3.1 4jg2. It now has a 3.0 4jj1 from a dmax