Front Differential Vent Hose Inspection/Replacement

I was easily able to access mine using this pose ...

 

Okay, that makes sense. Just out of curiosity, once you get the last bolt undone, the engine will want to "snap back" so I presume you have to do something to keep it angled down. What do you use to do that?

 

Mine were replaced just before I bought the truck, but I don't know what brand was used.

Thanks - that's exactly what I found.

 

Believe it or not a transmission jack.

 

Was doing a weekly inspection of the engine bay and noticed the front diff breather hose was very oily. It wasn't like this last week. Is this a sign of a problem or just a little too much fluid in the diff?

I have 180k on the truck and last filled the front diff at 120k. I need to do the fluids again (I've done the diffs and transfer case every 60k) but I can't until spring when it warms up.

Just want to make sure this isn't a warning sign of a potential problem.