Son of seed truck..

Why would an aluminum tranny be Rusty?
Driveshafts are handy at times around the farm for the pipe.
I was just talking about the kind of driveline it was from an automatic transmission to an 8 and 3/4. It just seemed so specific... that reminds me I'm about to leave I got to go grab that thing out of the garage and toss it in the back of the truck...