yup.
umm? I'm more confused now.. so what your saying is to never stop? Thus I will never have this problem... = /thread lol
Your best bet is to pin point where the sound is coming from. LSJs have a lot of timing retard in that area of the rpms so I would attribute possible engine movement causing something to rattle. I had an issue where my exhaust would rattle at that same point in rpms so I tracked down where it was loose and found that I needed to replace the rubber bushing on the resonator.