Can you name that sound (squeaking)?

On my Jk jeep and Class C that annoying squeak had many stumped. Look for something exhaust related. My shroud would squeak until it warmed up and expanded just a bit then it stopped. My Jeep it was a cross over brace holding the exhaust. Oh yeah, then my Duramax started and the exhaust flange bracket where the pipe connects to the exhaust manifold had a crack in it. A quick weld and no more squeak.

When cold, get under your rig and try pushing your exhaust around, the shrouding, clamps and brackets. On my class C I drove with the doghouse off, yikes that was tough but I narrowed it down.