what is the bolt / lug pattern

Looking for the correct bolt/ lug measurement on the econolines, 1963 if the year matters.
Also what is the correct way to measure is it center to center or top of one to the middle of the other?
Thx

Most fords are 5x4.5 . It is measured from top of one to center of the other on a five lug. Four, six and eight lugs are measured fron center to center.

Most Fords used to be 5x4.5, that is 5-bolt on a 4.5" circle.

As Dan said, on odd-number rims like ours you measure from the center of one hole to the outer edge of one farthest away. This approximates measuring the invisible bolt circle.

The only current Fords that have wheels that fit us are the Rangers and the Aerostars.