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The 2007 family of GMC Yukons has been completely redone. They shine with new interior and exterior styling, the latter contributing to an improved drag coefficient, and are built on a stiffer frame. Other improvements include new, more powerful V-8 engines; larger four-wheel disc brakes with an all-new ABS system; power fold-and-tumble second-row seats; a new 6-speed automatic, heavy-duty, electronically controlled transmission on select models; and the availability of rollover air bags.








