Hey there. Sorry to hear about your problem. Most of us run into problems with the headers hitting either a frame rail or a bell housing or driveshaft or something. Don’t think I’ve heard of it hitting an oil pan before, especially when it was made for that engine. I wonder if they were damaged or missed boxed.
But we are also mostly owners of the original first generation early bronco. A few of us own big Broncos, but but maybe not enough to do any good.
Hopefully someone has experienced the same thing or similar, or can perhaps direct you to a better forum where you might get more information.
A couple that I can think of are:
bronco.com and the other is Ford
truckenthusiasm.com.
full-sizebronco.there used to be others as well but I can’t think of them at the moment.
Sorry I can’t seem to be able to edit a website entry from my phone. So those are incorrect. The first is supposed to be enthusiast instead of enthusiasm. I think you get the picture.
Good luck!