Wiring Options for Flat Towing a 2002 Jeep Grand Cherokee Behind a 1986 Gruman/Olsen Delivery Van

Expert Reply:

The T-One Vehicle Wiring Harness, # 118381, that you have referenced cannot be used in a reverse type of application like you are describing. But there are numerous lighting options for flat towing a vehicle that will work for you.

The right wiring application for you will depend on several factors. There are basically two types of wiring solutions for flat towing. Permanent solutions and temporary solutions. If you plan on towing the 2002 Jeep Grand Cherokee often, you would benefit from a permanent solution such as a bulb kit, # RM-155.

A bulb kit does require enough room inside the tail light lens housing for an extra bulb and socket. You will also need to drill into the back part of the tail light housing in order to mount the bulb and socket.

Another permanent solution is a diode system like # RM-154. With this type of system, you will need to cut and splice into the vehicle wiring system. But once done, it will always be ready for flat towing.

If you do not plan on towing the vehicle often you can use a temporary solution like a magnetic light kit, # C-ATL20A. The benefit is a quick and easy installation. The lights mount to a metal surface. If no metal surface is available, we also have # EZT20B. One down side is that it may be difficult to route the wires if you wanted to keep them hidden.

I have included a link to an FAQ article on the various lighting options for you to view. I have also included a link to our series of FAQ articles on flat towing that has a wealth of information, including more on wiring a vehicle to flat tow.

expert reply by: Michael H