I have seen several trucks running around with car pans on them, even pulled one to swap an oil pump one time and it went in and out with no problem. It might should be swapped but you do not need to swap it.

As for the trans, it should most likely be an A-500 or 518. Very few TBI motors ever got a 3 speed.

I am not causing global warming, I am just trying to hold off a impending Ice Age!