Differential Housing's Question

Depends on your yard. Around here I wouldn't get cast for that load because of too much steel in it. Shock brackets, axle tubes, etc. on those diff housings are steel. I would get #1 prepared for a load like that. If you have enough material, you might consider separating out your cast such as gears, diff carriers, and rotors/drums, and hauling those in on their own. That would depend on how much extra your yard pays for clean cast, and you have to decide if it's worth it.