With the pin in, I tacked the gears in front. Then I pulled the pin out and rotated the assembly 90 degrees so I could weld the back side of the gears. This pic just shows the tacks before I did the full weld...I was able to weld the full length between the tack welds:

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I then rotated it back the way it's supposed to be, but the pin back in, and then finished welding from the front.
Sorry, I took this pic a few months ago and didn't realize that it was out of focus. Hopefully it's good enough to get the idea.

[Linked Image]

1989 Mitsubishi Montero SWB 0.0L (3.5L soon?) Auto, Front LSD, Rear SR Locker, Aisin hubs, Safari Snorkel, ARB Front Bumper, Warn M8000, Bushwacker Flares
1984 Mitsubishi Montero
2005 Dodge SRT-4
1970 Plymouth 'Cuda (in pieces)
...and a few others less interesting.