Its an LS3. I tried listening with a long metal gun cleaning rod with plastic handle(good trick by the way
) and its defiantly louder all the way back on drivers side. Thats why I could hear it so well. Its not loud pinging like somethings broke. Its just a clatter sound like listening with the rod but I can hear it without the rod louder in the one area. I don't expect you to diagnose it, just sitting here by myself all night and this morning thinking about it and wanted to bounce it off someone.
