Ok, I'm a retard. Yes the insert with the power6 emblem on the front of the cap is 2 5/16. The metal insert on the back is 3" Can you tell its been a long week lol
If you are talking about the ID---i just went and measured my known originalcap with my known-in-calibration measuring device(ver. cal.) and the id was 2.85".Let me know if you need another measurement.I think the id is what you are talking about though.
Jeez-my bad----i measured the part that connects to the wheel-----if anyone ever needs to know that size===it is listed above .You wanted the insert---guess i should pay attn. next time.I will measure that when i get home in the morning---sorry for the confusion
2-5/16 (2.312") is a common size I do, and sounds familiar...I'm thinking the 2.85" measurement may be from the base(?)--is it possible there's more than one "stock" wheelcap?
For clarity, I'll be more specific: HERE IS A PICTURE I have with the dimensions of a pair of wheelcaps (for GNX style wheels) for reference--the measurement I need from the stock wheelcaps is what I show as the "cap dia." in the pics, the actual overlay/insert diameter!