clunk/tap feeling under my feet.

[Ldub]

Do any of you with the phantom noise have Trooper skid plates installed?

If so, check the right front where the front prop shaft intersects the front edge.
This plate is very poorly designed & crushes easily, allowing contact with the cap screw heads.

Just a long shot...

[LittleBeast]

I would check sway bar connections as well. At the a arms and on the frame mounts.