I just made the swap to an H41 and built an Orion for lower gears, so I'm offering up the original H42 4-speed. $400 OBO — Local pickup only.
First year of the 4-speed. 16-spline output for the one-piece TC. Not sure of mileage, but probably...
Having just done the oil pan gasket and rear main seal when the transmission was out for a clutch job and transmission/TC replacement, those leaks are pretty easy, technically, to get done if you've got the transmission pulled. Search around here...
A little late to the party, but this worked great for me, so I'll share. I used one of the tools shown below to get the shape of the bottom of the transfer case (Orion, but shouldn't matter what it is), then cut a piece of wood to have the same...
Thanks, indeed. I'm beginning the tear-down this weekend. Same H41 and Orion going in before Rubithon in June. These videos helped settle the nerves about the rebuild quite a bit.