Removable, but only with a cutoff wheel.

 

Ditto...cough, cough. Don't ask how I know.

 

All is well guys, the oil already leaked out so I didnt have to drain it :P
Right as I pulled into the shop it started making the grinding noise..
But we welded it shut, added new oil, and drove it around the parking lot. Tell you how it all goes tomorrow. Wish me luck

 

You did not inspect the inside of the diff housing?

Just welded it shut and hoping for "luck"... WOW

 

Well I couldn't..I was training for a competition in Skills USA beginning of February.
It was 10 last night and we were at my school. Welded it shut, he followed me home (no issues btw), and drove to school the next day. No issues so far. I have to find some time to do that, plus I need a shop to work in. The school only let's us on certain days and I don't know any mechanics or friends with shops over here.

 

Well, the grinding was likely a $15 bearing that will end up costing you a hundred or two plus towing charges when it disintegrates and takes out your whole diff.
Just so you know.

 

My thought exactly

 

Excuse my directness, but I am sure you really screwed it up. You should never try rocking it by shifting it from Drive to Reverse. That is not the way to treat a Discovery.

You should have taken the time to understand the Center Differential Lock and made sure it will engage before you find your self needing it. Simply engaging your CDL should have extricated you with very little problem.

You have a pending disaster on your hand with your quick fix. And the price to repair will continue to climb exponentially the longer you abuse it.

Have Fun as You Learn!

 

So what I should do as to not have rising items to repair and a deflating wallet is take off the front axle assembly and check the differential inside the housing cover.

What am I looking for when I get to the differential? And what is this bearing that you are talking about?

This is seeming more and more complicated and to be honest I'm feeling a little overwhelmed.

EDIT:
And what is service tool
LRT-51-003?

 

I don't mind directness, I just want to figure this out before something worse happens. I couldn't engage my CDL into low.. It was already in high. I slipped into a ditch. In the 5 seconds it took to slide in I didn't react fast enough to put it in low. I put it in low when I could. Tried to drive out and I could not get any traction. The snow was melting under my tires and mud was flinging backwards. My "quick fix" was the only thing I could do at this time. But I'm not getting mad, I'm just saying that I can't do that much at the moment.