Throttle body intake
You probably got the answer to this one already but I'll answer it too:
I have a 2005 5.4 and there is a thin gasket in between the throttle body and the intake manifold. I'm not sure about any other models. Ford says to replace it everytime you remove the TB, but when I have done this before, it looks like the gasket is still good. I replaced mine anyways, I think the gasket was around 5-10 dollars, maybe less, I can't remember, but it looks like you could get away with just reusing the old one. It was cheap though and the ford dealership I went to had it on-hand.
I have a 2005 5.4 and there is a thin gasket in between the throttle body and the intake manifold. I'm not sure about any other models. Ford says to replace it everytime you remove the TB, but when I have done this before, it looks like the gasket is still good. I replaced mine anyways, I think the gasket was around 5-10 dollars, maybe less, I can't remember, but it looks like you could get away with just reusing the old one. It was cheap though and the ford dealership I went to had it on-hand.

