Guys, I just installed new suspension components, and the truck is driving great. Now that it's tight, I'm hearing an annoying rattle coming from under the car when I hit bumps. I got under there yesterday and poked around, and the heat shield seems loose to me.

If I push on it, it will move around vertically, maybe 3/4" or so?. I think it's the source of the rattle. While it's still there, it looks like a part is missing. Some bolts are holding it on, and they seem fairly frozen.

How are these things installed? Are they just a sheet of metal, or is there padding on the back? Any other recommendations?

 

I just removed mine. Not sure if this has any ill effects.

 

I solved the rattle by installing the high voltage fuse cap nuts the electric utility discards. (Lasted 10 years so far) Ask any electric utility truck you see stopped around for them. Dealing with removing the rusty original fastener is another story.

Hat shape threaded nuts at the tips of fuses, several flavors :

 

 

A guy on Reddit suggested these:
I'll give them a shot and report back.

 

If you have a Rover that has seen plenty of winter and salt those studs/bolts are rusted/seized. Years ago I took electrical wire and wrapped it around each stud/bolt. Push the shield up and wrap. Finish the wire off over the cross member or exhaust hanger. Provides a little support for the shield. Rattle gone and you can't see it