If your 1999 GMC Jimmy does not have a round U.S. Car connector tucked up under the bumper or spare to allow you to plug in a part like # 118384, or a bundle of wires you can connect to a 4-pole part like # HM41225 you can still install a trailer harness by splicing to the signal wires at one of the tail lights.
The best option is to hard wire a universal powered harness like # C59496 which will isolate and protect the truck's wiring from any potential shorts on the trailer. This is a... view full answer...
The first thing you will need to flat tow your 1999 GMC Jimmy 4WD, is a base plate kit. The Roadmaster Base Plate Kit, part # 179-2, is the correct choice for a base plate kit if your Jimmy is not a Black Diamond, ZR2 or an Xtreme. The kit has a simple installation with no welding required. I have linked the installation details for you to check out.
For a tow bar, I recommend the Roadmaster Falcon 2 Tow Bar, part # RM-520. The quick-disconnect system lets you quickly and easily mount... view full answer...
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