Good morning. First time to post so here it goes. I have read some really good tips, but I can't seem to find anything on this. I have a 2004 F350 4x4 crewcab and I am hearing a rattle under the driver side foot area. It is not a loud clunk, just a little rattle, like something is loose or 2 pieces of metal are touching when going over bumps. Any ideas would greatly be appriciated.