I normally tow small trailers, dirt bikes, quads and junk like that around so I've never looked into it but recently a buddy asked me to tow his boat. So I checked up on the tow rating first and I see my quad cab is only rated to tow 6900 lbs. Wow seems like the truck could pull a lot more. What's the reasoning for such a low rating? is it the brakes on the trucks or does anyone know?