Fuel neck grommet - Interchange question

I need a fuel tank grommet for a 65 b-body, but I've seen conflicting info on the year-coverage of fuel tank grommets for b-bodies from different vendors. Some sites show 66-74, some 65-74; I've even seen one list a 63-66 and 66-69 so I'm pretty confused.

Bottom line - Is there a 63-65 grommet that's different from the 66-up, or is it the same? If its different, who sells the early one?

Thanks
Frank

btt

I needed one for a 66-300 and couldn't find one, the one I used is for a 68 Dart. It would seem stupid to have a different grommet for every different model Mopar made during the 60's. So I guess the above post applies here.

Thanks for the info.