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Tomorrow I hope to get the front diff filled.
One PO of my Piggie cranked the front diff drain plug down so hard it took about two straight minutes with the impact wrench to get the drain plug out. I didn't see a washer so I need to check and see if one is supposed to be there. The diff fluid was pretty dirty. While I'm at it I'll change the rear diff fluid too.
That would be me.

Are you sure there wasn't a washer there? I have a little tackle box full of new Cruiser diff, TC, transmission and oilpan drain plug washers and I almost always put on a new one. Very unusual for me not to have put a washer on. Sorry about the tightness.

That diff oil had about 200 miles on it before you drove it home, so I'm surprised it was dirty already. I wonder if grease is getting in past the inner axle oil seal...
How did what you could see of the insides of the front diff look? How much metal was on the magnet in the drain plug? Remember it was the front diff that was noisy for a while after I did the knuckle job, and then it stopped making noise miraculously one day...