[RTRAM]

I have a 93 CTD and want to upgrade from a flat four to a 7 pin. I put the flat 4 in just after I got the truck and it works fine for the little trailer, but I want to start hauling a car trailer and need the trailer brakes. The truck brakes are good, but the trailer tends to steer the truck when I slam on the brakes at freeway speeds.

So, how do I hook into the electrical system, what gauge wire should I use, do I need fuses in the circuits, etc.

Do I need a brake controller, or anything else?

Also, I was hauling a trailer with a full size Blazer. I figure the trailer weight at about 6,000 pounds. What is the capacity of the CTD for gross vehicle weight? The CTD pulled it like a bid dog and even stopped fairly well.