Ever since I swapped the mtr's for the bfg at's I have noticed a whine under load and tracked it to the rear output bearing on the transfer case. It gradually got louder and louder and became an off the gas on the gas whine so this past weekend I skipped the ride and pulled the rear housing of the transfer case to replace the bearing. I also thought I would replace the front pads, since they were squeaking, check the front bearings, and rebuild the power steering pump if there was any time left over(there wasn't

)
brakes were mostly uneventful - 100 series pads required some sanding and the passenger wheel bearing was loose. Tightened that, ate some lunch and started on the transfer.
Removal was uneventful and teardown was way easier than expected. The lock ring pliers everyone borrows for the front axle pulled all the snap rings no problem.
didn't put this back in:
lots of new space:
culprit:
the old bearing seemed ok, but it did have a lot of drag compared to the new.
Night time rolled around and I went to put everything back together. I should have waited for day light but...there are two shims that just float on the back of the oil pump. I couldn't get the case to seat by the exact thickness of one shim. Instead of patiently tightening all of the bolts in sequence, I cranked on one and CRACK. Cracked the rear housing.
In another hasty decision I pulled the thicker shim out, rtv'd the cracked piece back on and threw it together. Bolted the rear DS in and went for a test drive. Made it about 10 feet before I was sure the spacer was needed. It was howling like it had no oil in it. pulled back in and called it a night.
the next morning I pulled it all apart, properly epoxied the case(one of the "ears" for the bolts broke off up by the oil pump - not the major part of the case itself) , went to church while the epoxy set up, came home and bolted it all back up with the spacer back in place.
So far the whine is 90% gone and it is leak free for now. I am going to help Scott replace his entire TC this week hopefully and will at some point replace my rear housing with his (assuming it is ok), but for now I am just going to run mine and cross fingers that it doesn't leak.