Wheel adapter spacer 5x4" to 5x4-3/4" x 1" thick

middle of stud to back edge of stud 2 away, but it sure looks very close to 4.5. Trans-dapt sells them now but I can't tell if the part is a generic stock photo to see possible 01-02 part number. Buy one, good for a 4.5 BC spare on a BBP rear end equipped early A that still has 5 on 4 fronts, I know they exist........:-)