Well, it's the weight rating of the trailer which actually determines this. 3000 lbs. weight rating and up, you do.
A small single axle trailer does not need brakes but be aware that your vehicle will have to stop the vehicle plus the trailer, so allow more stopping distance. A double axle trailer needs trailer brakes if you are carrying a heavy load of any kind at all.
No
It appears to be equipped for trailer brakes.
The most common brakes on a tractor trailer are the s-cam brakes
If you want trailer brakes you need a brake controller.
supplies air to the trailer brakes to allow the operator to release the brakes
You need to buy an adapter harness. Do not cut into your wiring harness.
You can buy trailer brakes in Autozone, although stock may vary by location. There is also a company located in Delaware that sells trailer brakes and other trailer parts called Eastern Marine - Trailer Parts Superstore online.
Yes. However, the truck must be wired for a trailer equipped with electric brakes.
i think that in some states it is illegal not to have one, but im pretty sure that if your car's brakes are good enough, you won't need one. but, it is terrible for your car's brakes if you dont have one and you are hauling a trailor. If the trailer has electric brakes - YES. Otherwise, no.
you do not need the extra 7 pin if your not running electri brakes
8,000 lbs on 2wd with trailer brakes 6,500 lbs on 4wd with trailer brakes