4wd cars...

Do you already have sure grip diff?

I've gone LOTS of places following 4WD vehicles including vast sugar sand orange groves with just wide rear tires, a limited slip rear and some intelligent driving coupled with situational awareness.

...but carry a come a long and snap straps just in case.
I was given a chrysler 8.25 with a welded differential and I was gonna use that to replace the 7.25 thats under the car.I'll probally change it to a LSD or a locker eventually but it can work as a place holder for right now.I've taken my hacked up green dodge to some impressive places and it is 2wd with a welded rear diff.It does piss poor in the rocks but for general trail riding its pretty good.Other than the v6 automatic+ 2.93 gears+ 33" tires...

As far as the gasser or 2wd jeep front axle it would have to be very tall to clear the oil pan.Then there is also the issue that I'm up in northern Idaho,I wasn't even aware Jeep made 2wd vehicles until a couple years ago.I have never even seen a 2wd Jeep up here.However, the front suspension from a 87-90 2wd dakota might be easy enough to swap under.

As far as buying a Jeep or other dedicated 4wd,For the couple times that 2wd with a good driver wont get me through something a come along or chain hoist will serve me better than 4wd.Like I said,I don't plan on driving this down hardcore offroad trails I just want to explore the many dirt roads around here.I have enough sense to turn back and try something with a more capable vehicle if things start going sideways.