What part of the axle housing is that Jon? I don't recognize that tube in the picture.
Dan
A little update.
Yesterday I took off work at noon to go axle shopping at the U-Pull. They had three 1985 trucks, and one 4Runner. All three trucks were 2WD, so the axles wouldn't work. As I predicted, the 4Runner rear axle had been parasitized, missing the diff and axle shafts. In addition, the springs had been taken too. All I needed to do was remove the brake line, disconnect the proportion valve, and remove the parking brake cable. In 15 minutes it was mine.
The next stop was AmToy where I ordered axle seals. The axle housing was a filthy mess, so I stopped by Kaehr Plating. They are going to soak the housing for me to get it cleaned up. Ya, I probably could have done something with some engine cleaner and a pressure washer, but I didn't feel like it. New u-bolts and shock mounts were ordered from Marlin.