Loose center wheel hubs?

[Creek Jenkins]

The decorative center of my wheels were loose on two tires on my 310 RL paradigm. Drove me a little nuts that they were so loose. So when I had a tire off to replace the wheel seal, I found the center hub has four divots on it that when rotated correctly line up with a flat spot next to the lug on every other lug. When aligned correctly, this maintains pressure on the wheel center to keep it from rattling. Note not every lug boss has the flat spot, it’s every other lug only.
Cheers
Creek

 

[Chaseweston]

Interesting! all of ours are loose and I just figured it was the nature of it..

 

[Creek Jenkins]

Jack up the rig, turn the center hub a few degrees until it’s in contact with the flat spot, loosen the lug nuts until you can rotate the hub a few degrees more, then re-tighten everything while keeping the hub in position.