You should run your tires at max pressure to achieve the full weight carrying capacity. fill them when they are cold, have not been heated up by driving, to 50 psi. Your truck tires should be the same method.but if you have light truck tires you will fill the rear to 80psi and the front to 50 or 60psi
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2012 Cedar Creek Silverback 29RE
2011 GMC 2500HD Diesel
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