because it's still a solid axle? and it's beefy? Which would be required to hold up to the abuse from a post-apocalyptic wasteland. It could alsobe the axle the bus had originally.



Not to mention even if you did take the guts out of the diff, the axles themselves would come undone since the axle ends have C-clips that hold them in against the spider gears of the diff. Most would jsut take the diff cover off and weld the whole thing...but maybe a welder is scarce, so they just leave the diff as is and cut off the driveshaft.