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trailer harness


ama1az

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I'm looking for information regarding the trailer wiring harness on the Sierra p/u. I have an 02 Sierra that came with the 6 wire pig tail. This was easy enough to connect a 4 wire trailer plug for our utility trailer.

 

We recently decided that we want to buy a "light" rv trailer and possibly rent one before investing in a new/used trailer. I understand there were two harness setups installed on the pickups. A 6 wire which I have and an 8 wire which has a battery feed and electic brake control. Does anyone know if the 6 wire harness can be replaced with the 8 wire harness? Is there a connection point where the factory runs one or the other back to the hitch area?

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