Fuel trim ring different for different years?

[OrangeCrush]

I have a factory H2 chrome fuel gas door. (full door and ring)

For my setup, I prefer just the ring. Point is, I ordered a defender worx ring and when it came in, it doesn't fit.

Does anyone know if the '03-'05s use a different ring than the '06s?

It looks just like the one I installed on my '03 but it sure as hell doesn't fit my '06.

Anyone have any experience with this?

Thanks,

Mark