Got a good start today, until I ran out of wire.
First thing I did today, was cut off the bearing housing at the weld. Then I tapped out the short section of axle housing, and cleaned up bearing housing. The tracker bearing fits into the housing very snug, just like it should. I will need to get a special seal, because the bearing housing steps up larger after the bearing (at least one seal, and the bearing will be stock).
After removing all the brackets on housing, and cleaning up the weld area, I cut the long side to appropriate length. I then installed the bearing into bearing housing, and put bearing housing back on diff housing, and installed the axle. Fit on this looking good.
After tacking bearing housing in place I removed the axle. Bearing comes out with the axle, as I did not try to make a snap ring notch to hold it in. As I stated before, I will have to get a seal sized to fit hole. Just finished welding the bearing housing up, and ran out of wire. So here is where it sits.
It looks bigger, and longer than the aluminum case. But, the axles go all the way into the diff., so couldn't make any shorter. I will measure the length from axle to axle on my running tracker (when it stops raining).
Tomorrow make and install mounting brackets.