You will get many opinions on tire pressures. FWIW we run the duallys at 80# when towing, and 60# when not. Improves the ride. Fronts always at 66#. All per spec sheet on truck door jamb. (08 Silverado 3500) Also have G614's on 06 3400RL. Run them at 100#. Many run them at max pressure - 110#. Enjoy your new rig and be sure to ask, there is much to learn and no such thing as a dumb question here.
-Steve
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