How to Convert 2008 Ford F-150 with 4-Way Trailer Wiring to 7-Way

Question:

I have a 2008 f150 with a factory 4 wire. I would like to convert this to a 7 wire and would like to connect directly to the existing wire harness replacing my 4 wire. Can you recommend the product to use.

asked by: Mike

Expert Reply:

If you check out the picture I attached you'll see where to find the trailer wiring under the rear of your 2008 Ford F-150. The two wires pointed out are the ones you'd need to extend to a 7-way like the part # 37185. The blue one is the brake output and goes to the blue wire of the 7-way and the orange goes to the black wire. Your current 4-way then plugs into the 4-way of the # 37185 and you'd be good.

For a brake controller I would recommend the Prodigy P2 Brake Controller part # 90885. This is our best selling brake controller because of how well it works and how easy it is to setup. This is a proportional brake controller that senses the amount of braking the tow vehicle is applying and applies a proportionate amount to the trailer brakes.

To install it requires the install harness part # 3035-P and it'll be wired up.

expert reply by: Jameson C