I've gone down this rabbit hole too looking for technical details. There's not a lot of content out there. More details about the racers (which is cool), but not much about the LC. As this is production class, I don't assume there to be huge modifications or changes, other than typical racing gear and safety items. Does look like a diesel LC200 which is cool.
Someone suggested it was modified with independent rear, and while I couldn't find explicit pics, I doubt it. Does look to have some sort of dust/sand shield hiding (protecting?) the rear bits.
Watch enough of the videos and a picture emerges.
*Yes 1VD, mated to at least for some years a manual transmission. I forgot to look for a manual transfer selector but assume that is what it has for simplicity/reliability.
*Solid rear axle with an additional shock per side, and yes large gravel shields to keep that stuff out of the rear springs/links.
*Additional shock per side in front as well.
*No KDSS.
*Seems to he running a body lift, but I’m not sure.
*Obviously a cage, dual spares inside the rear, and I imagine a fair number of tools and safety gear.
*285/70R17 BFG KM/KM2s on what seem to be custom enkei wheels. Assuming forged and very strong. I’d like to get an offset.. but understand that will be tough to track down. I’m thinking the evo corse Dakar zero is meant to be a substitute for this wheel.
*From watching it in action, it must have a front locker, I assume selectable. Some tight stuff clearly had the front tires locked together. Selectable locker in rear seems obvious.
*No winch, only strong tow hooks modified to be further up in the center of the front bumper.
*Mishmash of other stock parts. Non-blinker mirrors, as one small example.