Ever lost a sway bar bushing????
Here's a few tips guys......
When I first swapped mine out, I'd get a rattle behind it. I figured it was the pedal rattling against the bare metal that you can see when you take it off.
After looking at it a little more.....I found the whole dead pedal support is a separate piece and it rattles against the floorpan. Here's a fix for it after you pull the carpet back. Look at the top of the dead pedal support, the little round sticker.....
I threw a little silicon pad (the kind you use to keep cabinets from slamming shut) behind that lip....seems to have fixed the problem.