In the 2004 season, Dillon set career highs and franchise records with 1,635 rushing yards and 12 touchdowns. He was a major factor in the Patriots' win over the Indianapolis Colts in New England's first playoff game that season, rushing for 144 yards and catching 5 passes for 17 yards. New England won its third Super Bowl, due in no small part to the running game built around Dillon. He was the top rusher of Super Bowl XXXIX with 75 rushing yards and a touchdown, while also catching 3 passes for 31 yards, for 106 total yards. Overall, Dillon rushed for a total of 292 yards, caught 9 passes for 53 yards, and scored 2 touchdowns in New England's 3 postseason games.