My 2020 LE Rubicon definitely has an aluminum hood as are all the body panels forward of the bed which is steel except for the tailgate which is aluminum and oh yes, the fuel door is plastic.
I've been running them since early 2020 in gun metal. No problems so far. Since you live in a high salt area I'm not surprised. Down here in God's land called Texas we don't see much salt on the roads at least not in the Dallas area. You better take corrective action soon. Aluminum cancer...
Looks like that nose piece might be removable. If you can, take it off. You must remove ALL of that corrosion or it WILL return. Sand it, scrape it or wire brush it till all new metal shows. Treat the aluminum with aladine etchant and then a good coat of zinc chromate. That's the only way to...
I had exactly the same problem so I rotated the front tires to the rear and the problem went away. I jacked up the right rear, disabled the ABS and put it in drive. A noticeable wiggle could be seen in the tread pattern indicating an internal flaw with the tire. My tires are more than half worn...
If you look closely at your muffler you will see a small pin hole at its lowest point. It's there for water drainage to help minimize rust in the system. Sometimes they put drainage points in other places also including clamped areas for that same purpose. You might hear a small sputter when...