15X7 Rally Wheel with FI code

[COPO_Anders]

Tom, you are right.

Today I managed to get hold of the seller of the wheels and he confirms that they came on a late seventies Chevelle wagon.

I also put one of my 1969 Camaro AD-code wheels beside one of the FI-wheels and they are the same width. The offset is also very close if not exactly the same, at least within one tenth of an inch. The only real difference is that the rim has half an inch or so more clearance for brake calipers. But I guess that is why they went from AD to YH on the 1969 Camaro, because the JL-8 option needed it ?

But why is it not possible to find a list of codes for these late seventies rally wheels ?

Thanks !
Anders