exhaust feedback

The number 4095244 comes up as a '81-'87 driver's side truck manifold, can't find 4173143-1, I "assume" it's the matching passenger side manifold. I'm shocked that the driver's side fit your Swinger. Got any pics?
You won't find pre-bent headpipes to fit those manifolds in your chassis, you'll have to find a local exhaust shop to try to bend some up.