What rear gears do you have? What is your tongue weight?
I suspect that you will have 3.55 gears and these will reduce your towing capacity. Also, depending on your tongue weight, you may need a Class IV hitch.
Lastly, the load rating on your tires may not be sufficient.
A load leveling device and an anti-sway hitch are also highly recommended.
The OEM brakes should be fine as long as you are in Tow/Haul transmission mode.