Hey there. Welcome to classicbroncos!
Sometimes the Ford brakes are tricky the first time around. But it might not be you after all.
Lots of replacement parts are made incorrectly these days. I've run across it on several brands and on several vehicles. With the last Ford brake I did, the pads were simply too thick and needed to be shaved down or replaced.
Are yours hitting metal to metal? Or if the friction material was thinner, would it fit?
If you're not sure, post up some pics.
You can't do that directly without becoming a contributor, but you can either e-mail them to me or use your "garage" feature in your User CP and we might be able to tell from there.
You can private message me and I'll give you my e-mail and then post them up for you.
But if you put them in your garage, people will still be able to see the pics in other threads you have discussions about your Bronco too.
Good luck.
Paul