Anybody running 17" Cobra Bullit rims on a Duster

The problem is they show them as having identical specs - at least the all black 17" ones I'm looking at - yet they have separate item numbers and only say they fit their specific age range. Other sites claim the 05-09 has a deeper backspace and less "ridgey" aesthetic. I'm wondering if it's a situation where they throw in some spacers to make an 05-09 fit on 99-04's but it's all the same wheel. Tried calling them today but they were closed. Will try again tomorrow.

Just spoke with American Muscle and confirmed the bullitt wheels they carry for the 99-04 are the same as the 05-09 even though they have different part numbers. They have different part numbers because of tire reccomendations based on proper ride for a particular gen mustang - but the actual wheel is the same. This applies only to American Muscle - I don't know anything about other aftermarket suppliers of the Bullitts. I believe the OEM bullitt wheels are different in appearance (spoke peak) from one gen to the next.