This is a tough call to suggest possible causes. Is it the same noise as before but now only at 35+mph or are you just hearing a new noise after the other sources have been eliminated?
It could be resonance of a part such as exhaust, heat shield etc, but I would expect it to happen with engine rpm rather than speed. It's possible it's the brake shield but I would have expected it to manifest itself on the mechanics ramp.
Best Idea is to get a passenger to have a listen around as you drive to try and pinpoint the area from which it originates, front / rear is a good start if possible. Then is it only happening when moving and is it engine rpm related.
Good luck
Mike
Yokohama Geolanders, Sony head unit, NAUTILUS Air Horn, DRL conversion, Rear cargo space, Elvis Bobblehead, transfer Guard, Indian hanging Elephant, Koni Heavy track dampers, Custom SS exhaust, Voodoo Doll, Adventure Rack with LED ight bar, vintage ERIBA caravan usually attached (yes it's slow)
