I recently bought a boat that is sitting on a Tennessee Trailers rig, the owner's manual for which was included in the package. However, that manual talks about "Trailer Buddy axles by UFP", with what appears to be a stainless steel cap and "blue Autocheck rings". As you can see in the photo attached, I have what appears to be a rubber or plastic plug in the center vs a stainless cap. I assume my rubber plug simply pries out, as described for the stainless plug in the manual, but can someone confirm this for me? I hate tearing something up unnecessarily. :embarassed: