(Because I don't know how to quote and reply to everyone...)
Clark: I appreciate the link and the insight on the required upgrade.
kvom and cudruln: I appreciate the advice for the front locker.
Trying to understand a little better, I've heard that a D35 is not a good diff., why is that? And why would I need to upgrade the axle shafts? Or does the answer to the second question answer the first?
My hesitation with just a lunch box is if I end up in a situation where my rear diff goes out, or I break my rear drive shaft/u-joint on the trail, how do I get back? Where if I get a selectable, I can still drive home. (Is that correct thinking?)
Also, reading other posts on here, it seems that I can only go so big with tires before having to upgrade diff/axles, I am trying to get a used one at a decent price saving me some money if I end up having to upgrade the whole setup. (This is why I was looking for someones used level entry locker).
Am I being too cheap? Or is this a reasonable thought process? I appreciate the feedback, again, as I don't know much and am trying to learn. Thanks.