Abel and Ware, who won gold and silver, respectively, in the individual 3m competition earlier in the Games, joined the other two members of Canada's "Fab IV" divers in winning medals Monday. Roseline Filion and Meaghan Benfeito won gold in the synchronized 10m platform competition earlier in the day.
Abel and Ware struggled on their third dive but recovered on their fourth on their way to a final score of 298.23.
Mexico's Paola Espinosa and Dolores Hernandez won the gold, edging the Canadians with a 301.20 final score. Americans Deirdre Freeman and Maren Taylor took the bronze with a score of 293.10.
Espinosa's gold medal gives her three at the Pan Ams.
Abel, 23, won a bronze medal in the synchro springboard event at the London 2012 Olympics with Emilie Heymans as her partner, and also won a silver in the same event at the 2011 Pan Am Games.
Abel's gold medal in the individual springboard competition at the Pan Ams qualified her for the 2016 Rio Olympics, which will be her third. Abel, from Laval,Que., has been a star in Canadian diving ever since her debut at the 2008 Beijing Olympics, when she was just 26.
Abel and Ware's silver medal increased Canada's diving medal count to eight, while Mexico's gold medal gave it nine in total.
The men's synchronized 10m platform event later Monday night will close out the diving competition at the Pan Ams.