I have a GM 7.5" rearend out of a 78 Impala.  The gears are 2.41s and have rusted since the cover was left off.  However, the housing is straight and the axles should be good spares.

I also have a stock steering column out of the same car, the bearings felt good.  The bottom collapsible part has been cut off.

Both of these need to get put of my backyard, if you could kick a couple bucks that would be all right, but free is fine too.

Let me know if you're interested.