Has an AFL game ever ended 58-48?
Exactly once. On May 29, 1926, Fitzroy beat Carlton 58-48, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 58-48 in league history.
That makes 58-48 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 59-48 has happened 4 times and 58-49 has happened 3 times.