Just got back from 3600 mile trip from Texas to Yellow stone park, pulling travel trailer , Have 2006, 2500 4x4 auto averaged 10. 5 mpg at 70 mph round trip. 6000 miles on truck, hope fuel mileage gets better. I hear a little gear noise in front hubs I think, any one else hear this noise ??
thanks charlie.
thanks charlie.
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