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Installing 7-Way Trailer Wiring for a Gooseneck Trailer in the Bed of a 1999 Chevy Silverado  

Question:

I have a 99 Chev. 3/4 ton truck with a 4-flat connector and gooseneck trailer with a 7 blade connector. What are my options in connecting them?

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Expert Reply:

You could use the 7-Way Pre-Wired Car Connector, # 20023, and hardwire it by function into the existing 4-flat wiring. You will need a circuit tester like # ALL640595 to find the wire functions.

If your 1999 Chevy Silverado has the round plug with a cap above the spare tire, you can use Replacement Multi-Tow 7-Way and 4-Way Trailer Connectors, # 30955. This connector will plug into the factory connector. You could then route the harness up inside the side of the bed and drill a hole to mount the connector.

If your truck has a bundle of wires above the spare tire and no plug, you can use Pollak 7-Pole, RV-Style Trailer Connector Socket with Wiring Harness and Mounting Bracket, # PK11898. You will need a circuit tester # PTW2993 to wire this harness by function. You can also route the harness inside the side of the bed, drill out an opening, and mount the connector.

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Michael H
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