Richard, thanks - yes, a long handle wrench for the filler plug I had thought about, but don't own one with the proper angel, and length - a new tool to buy for sure.

The rubber boot that exposes the bolts, I see that but wasn't sure exactly how to pull on it - so I'll be gentle and try to pry it out.

Here's a new problem perhaps you and the others can help me with - turns out the filler plug on the transefer case was loose. This might explain why its somewhat wet on the outside. Upon unscrewing it, I found what appeared to be something like plumbers teflon tape on the threads - grey in color. When I went to replace the bolt, I see what the last guy may have tried to do - secure it with whatever the "stuff" was because while the bolt does screw in, it never tightens fully so I am guessing the case threads are stripped or ruined to some degree - the bolt threads look fine. For now I put it back with blue thread locker - any advice on what to do is appreciated!

Torque on all these bolts was unreal! Are they around 300+ ft-lbs? I see by the manula that for 24mm bolts not otherwise specified this is the case.