Hello lilbigjohn,

I believe your truck can only be out towed by a 4x2, meaning you can tow between 10,400 and 10,800. Towing will not be a problem. Good decision on the wd hitch, it will come in handy. Expect the following on MPG:

55 - 60 MPH - 12 MPG
60 - 65 MPH - 10 MPG
65 - 70 MPH - 9 MPG
70 - 75 MPG - 7.5 MPG

This is what I get towing 8500 lbs.

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2007 CrewMax, 5.7L, SR5, 4x4, Super White
TRD, Moonroof, Fender Flares, Fog Lights
Brushed Stainless Stepboards
Borla SS Exhaust
GatorHyde Bed Liner
Hayes Brake Controller