I agree, this is an unusual application. After you remove the wheel, you push the cap through from the front. Once you forget to put the cap in the wheel a few times before you reinstall the wheel, you remember the sequence much easier.....
These are not hubcaps ... they are center caps ... most all aluminum wheels with the chrome center caps are equipped this way. The center cap goes on before you mount the wheel to the brake hub like has been explained. My boat wheels are the same configuration.
Yes, ram high country, you have easy lube hubs.
Sure wish mine came with wet bearings. Works fantastic on our boat trailer. Thanks to the OP for asking that question. I too, was wondering how the h*** that danged cap came off. I guess I'll have to take the tire off to simply find out what kind of bearings I have??But you do not have wet bearings. They are not same as easy lube.
I have a chatter when I move forward or back at slow speed much like a rock in a hubcap
Have you experienced this
No visible signs of defects in axle or wheel