This is a new one for me but it happened twice today, and on the same stretch of road, just going in the opposite directions. Cruising along around 65-70mph, easy driving. Nothing unusual. Suddenly it sounds like I ran over a piece of sheetrock corner bead. You know, the stuff that gets put on corners, made of very thin galvanized metal? If you're not familiar with that sound, it sounds like what you hear when you have bout 15 feet of tape measure out and you let it all come back in without slowing it down. That's really the best way I know to describe it. This sound came from what I best guess as the front driver's side wheel area. Both times it happened I got out of the truck and looked for anything that may have been jammed up under the truck. Nothing appeared to be abnormal. Skid plates sounded tight when I banged on them. Nothing feels loose on the front wheel assembly. Nothing I could see in the driveshaft. I'm at a loss on this one. I've already got an appointment for a sunroof fix on the 26th and I want to be able to tell the service writer something without sounding like I'm off my meds. You know, like this post makes me sound. Conditions when this happened...2018 Raptor. 802A. In 2wd. Normal mode. 34,200 miles. Approx 65 degrees F outside. 65-70 mph speed. Driver plus 3 occupants. Mostly full gas tank. Clear weather. No debris or obstructions on a very smooth road. 5 pumpkins in the back seat. Seriously, just a normal day. I'll have to wait until morning to check for anything but I thought I would post in case someone has seen this before. Thanks a bunch for any help you can offer.