So it seems, I have something just like this...a leak or some kinda oozing of perhaps axle oil from two points on the diff on the passenger side below. I am pretty sure it's axle oil, nothing coming from above that I can see but this seems to be an oozing not a drip drip leak onto the floor. The round inner axle joint is covered in black oily stuff, I wiped it away a little as you can see (the driver's side joint has nothing like this on it). And the bottom of the diff casing has a little bit of black gunk coming from what looks like the seal..I guess.
Can't understand how something like this could happen, the VX has only seen streets but prior to this I did have an odd occurrence of "loose" bolts on the passenger side control arm to the frame that had to be tightened. Don't know how that could've happened...out of nowhere had some weird brake noises on the front passenger side wheel, took it to an Isuzu service shop and they found the umm magically "loose" bolts.




Plus, a closer look while I was under there at the steering gear housing shaft shows a visible blackish substance making its way down...this didn't look normal as I would think the assembly would/should be sealed(?).