Easiest and fastest way to get this fixed is going to be to pull a third member from a wrecking yard or truck someone is parting and bolt the whole thing in.
I don't have the tools/knowledge to set up the gears so would have to pay someone to do that, plus the gears themselves aint cheap and if I'm going to be rebuilding a third member then I'm going to want to put a locker or tru trac in and change the gear ratio too.
Just need to get this truck back on the road in the next few days so swapping the entire 3rd is the easiest and probably cheapest way to do it, though I bet I'll have to pay more than $50. Aint nothing cheap in this neck of the woods.
Gears are 4.10s.