Just throwing it out there...maybe your cats have the honeycomb material broken up inside...sounds like what you describe or even marbles..

 

have you took your track bar off and check...

 

I'm very interested in this thread.

Did you find the root cause of the noise?

 

I would look at your brake pad retainers, they tend to be a wee bit noisy as they get older.

 

I had a similar noise and thought it was rod tick/knock after a long drive once she was nice and hot. Found out it was the cat that was on its way out! The cat took a shyt so I cut them both out and welded in exhaust tubing. No more knock/ticking noise

 

By "cat" do you mean the catalytic converter?

Thanks to those folks who responded to my post!

 

what else would it mean in reference to a vehicle???.... Yes.

 

Somebody say we're playing a game? Cat and mouse? Oh yeah, I'm in......... anyone seen my cat-train I left near my cat boat, the one with the cat rig. I'm late for my Cat scan, the Doc thinks I have cat scratch fever cuz I got bit by a cat shark. I hope I don't get stuck behind that old lady again cuz she drives her Catillac like it's a Caterpillar.

 

hahaha

 

I just made that my new background pic.....!