Why Would 2003 Chevy Silverado Have 8 Wires Ran to Trailer Wiring Bundle  

On a 7-Way trailer connector the brake lights and turn signals are on the same circuits. The pins in the connector at the 3 o'clock and 9 o'clock positions are the turn signal and brake light circuits. On the tow vehicle side use a…

I'm pretty sure that's to wire up a third brake light on a camper shell. To know for sure, take a circuit tester, like our part #PTW2993, and test that wire while applying the truck's brakes. If I'm correct…

I'd be happy to help with that. The blue, white, yellow, dark green tow package wires will connect to the like color wires on the new plug you're using. The white wire is ground, the blue wire (should be light blue) carries a brake signal for…

When hardwiring a 7-Way to your 2005 Chevrolet Silverado, like part #PK12-707E, you will want to connect the following functions to the following pin locations: 1 o'clock - 12V Power 3 o'clock - Right Turn/Stop 5 o'clock - Brake…

My suggestion is to test the wires for function with the trailer connected to the tow vehicle. You will need a circuit tester, like part #PTW2993 and a 12v power source, like a car battery. You can then probe the connector with the tester to…

It sounds like you have found the bundle under the rear of your 2005 Chevy Silverado that would be used for wiring up a 7-way. In the bundle of wires, look for the following colors: Yellow = left turn and brake light Dark Green = right turn and brake…

The factory plug is located above the spare tire on your 2006 Chevy Silverado. I have included a picture of what it looks like and where it is located. You will probably have to lower the spare for easy access to the plug. The tow package wires will…

You will first want to check the fuses on your tow vehicle. Some vehicles could have fuses for operating the turn signals and brake lights of a towing package. You will want to check if they are installed and working properly. The next thing is to…

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

The best brake controller option to go with is one that activates the brakes proportionally instead of time delayed. A proportional brake controller will activate the trailer brakes at the same time and with the same intensity as the tow vehicle…

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.