It was a stuck caliper for sure. Replaced both front calipers, rotors and pads. All seems to be in good shape now.

I know a lot of poeple pointed to all the ball joints/bushings in the front end, but man.. even with 100K on it, this thing is solid. All the front end parts are in great shape, and no sign of play.

Anyway, thought I would update for anybody that might find this odd shaking after 5 min of driving.

Thanks,
Tom

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2001 X5 4.4i Sport
2013 550i Xdrive M Sport
2000 528i E39 (Sold)
Unleashed Air Racing 279 mph Best Average Speed