Are my rims identical?

[v8unleashed]

I ask this, because the rims on my 1991 Formula are all 16" rims, but the diameters measured from the inside are different, I suppose due to the fact that it has discs up front and drums in the rear, and didn't need the same clearances both places.

I assume the rims on my 2000 WS6 are all identical, but I don't want to find out they're not the same way I found out on my 91.

Thanks.

[SexOnWheels]

Yes the stocks rims on your 4th gen are all the same.

[9T8W66]

All third gen 16" wheels have 2 different offsets the fronts are on center and the rears have a positive offset, That is why they can't be rotated.
4th gen wheels are all positve offset and there is no difference front to back.