Has an AFL game ever ended 96-49?
Exactly once. On July 2, 1955, Richmond beat Carlton 96-49, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 96-49 in league history.
That makes 96-49 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 97-49 has happened 5 times and 96-50 has happened 2 times.