What they are saying is, on the front wheels, the year spindle used on the swap may dictate front rim selection. If you turned the wheel all the way left then right and took pictures of the spindle we could most likely tell you. The spindle is the piece the wheel and brake mounts to the body
You may also have a 5 lug rotor which just replaces the brake rotor with 5 lug vs 4 lug. it is easy to identify as the brake rotor is both the brake ring and hub, where as the newer ones is the brak ring but not the central hub
rotor has no hub its part of the spindle, see pics below.
No spindle swap just 5 lug conversion rotors below
Rotor does not have "hub" in the 94+ spindle scenario