On December 8, 2005, Jones signed a two-year contract to return to the Tigers. In , he also participated in the inaugural World Baseball Classic. On May 21, 2006, he became the Detroit Tigers' all-time leader in saves, passing Mike Henneman. Jones saved 37 games for the 2006 Tigers, who made the postseason for the first time since 1987. He would appear in seven postseason games for the Tigers: two in the ALDS, three in the ALCS, and two in the World Series, pitching the ninth inning in each occasion. He converted four saves and allowed one total run (unearned) throughout the postseason. His last postseason appearance was Game 2 of the 2006 World Series, as he finished the only victory that the Tigers would garner against the St. Louis Cardinals. Jones retired with a postseason ERA of 0.00 in seven innings.