Measured both rotors. Got 2-3 thousands out of each. Spec is 8. Looked at steering neck, discovered no zerk fitting but also don't see anything wrong, swing back good, nothing loose, no clunk. Checked pads, plenty left, cleaned up calipers, pistons about halfway out, no burs, Spin wheel and with only wheel, I get this click click click noise. Like a numbers game at the fair. Bingo....Pull wheel, bearings fine. Spacer touching both bearings but can flop up and down still. Get bearing tool out and pull the right in a touch. Bearings still spin but kind of stuck together now with spacer, usually would pull right out a hair so they spin by hand independent, but figure I WILL SEE WHAT HAPPENS. Put all together, ride, no vibration. NONE.
Don't know if it was spacer, or dirt in calipers, no idea. Only happened at hi speed but was consistent with every hi speed front brake action.
Last year I had a 2010 limited with a bad NON-ABS bearing cause the voltage gauge to slowly go down and then bounce. SO all kind of magic happens up front I cant figure out why. But I am going with a loose spacer for now (set at factory, never touched or wheel off before, 10k miles).