yeah that may be why, i know at least one of the yards here specifically says "complete car" i believe with oem cats even. not sure why that matters other than the fact that they resell them. maybe that makes it more cost effective for the yard. or they get some sort of epa bonus for recycling them, who knows.
i called the one and even asked if it was ok to bring it in on a trailer with no rear axle under it and they said its fine, so i'm feeling fine about it. at this point even if the axle didnt work out for me i'll still be making money off it haha
to be honest i didn't even look far enough under it to see if the shaft was aluminum, i only assumed. i was thinking it was pretty common under fords by that time. but it really doesn't matter to me. as long as i get a driveshaft under there that's sturdy enough to beat on a little bit i'll be happy.
i'm eventually doing a 440 swap into it. i've had the engine for quite a while and it's a mild build, nothing fire breathing. but regardless of the build level, the car needs an upgraded rear and the 3 i would like the most, 9 inch, dana 60, and 8 3/4 are out of the budget. especially because i feel like for what the 8 3/4 costs, its not that much stronger than the 8.8, if at all. the 8.8 is a fine axle except for the dumb c clips. a friend of mine has a supercharged mustang and his is still holding together.
the new ford trac lok unit has a beefy housing, new spider gears and carbon fiber clutch packs. and it's rebuildable if something does break or wear out.
i really wish i could afford the 9 inch. maybe that's something i can collect pieces for way down the road. but if i one day in the future manage to build an engine and a car that actually requires that over the 8.8, i've clearly come into some money that i don't see on the horizon right now LOL