How To Ground New Trailer Lights that Ground Through Hardware

Question

Question:

I have a 70ish trillium camper I put new lights where the old ones where mounted to the fiberglass new wiring harness all checks out Im getting power but the lights want work! I think its a ground problem ? The harness is grounded at the farm how do I ground lights with no ground wire?

asked by: David E

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Expert Reply:

The problem is the ground. A lot of trailer lights ground through the mounting hardware but not all trailer applications have lights that attach to metal portions of the trailer which then touch the trailer frame. So what you'll need to do is run a jumper wire from the ground of your lights to the frame or back up to the main ground of the wiring harness and you'll see the lights start to work again.

expert reply by: Jameson C

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Answer 1

The metal used in the hanger kit part #HAP-103-203-02 for the hangers is 3/16 inch thick. The hangers are for 3 inch wide slipper springs so that means the overall width is 3-3/8 inches.

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Answer 2

The only leaf spring bushing we offer with a 5/8" I.D. and 1" O.D. is the Rubber Bushing with Steel Sleeve part #DX77XR which measures 2-3/16" long. The bushing can be cut down if needed. I have attached all our leaf spring…

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Answer 3

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Answer 4

Yes, you can jump the front axles brake output circuit to power the rear axle. Check out the picture I attached to see how most people do this.

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Answer 5

If you do not have the ability to install standard sheet metal screws, there are a couple things you can do. You can drill holes in the sheet metal for the bolts to go through. You would then use a lock washer and nut on the other side to secure…

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Answer 6

Only the blue wire is ran to the trailer brake connection at the rear of the vehicle. This wire should be 10 gauge. The ground for the brake controller is ran to the negative battery post or a suitable ground point on the vehicle. The grounds for…

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Answer 7

If your trailer has 7 wires running all the way back to the brakes, then yes, you can tap into the existing wiring. Each of your new brakes will have two wires for the brake magnet. One wire is for 12 volt power to the brake magnets and the other…

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Answer 8

You could use the tandem axle hanger kit part #APT5 which comes with new hangers, equalizers, shackles, and bolts. As long as your leaf springs are the standard width of 1-3/4 inch this would work perfectly. For a standard size bushing replacement…

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Answer 9

You should be able to get the nylon bushings out fairly easily. In the worst case scenario, you can use an old 5/8 inch bolt or piece of round bar stock and punch the bushing out. The bronze bushings can be pounded in with a mallet or a hammer. If…

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Answer 10

A replacement equalizer will be necessary if the rubber core needs to be replaced. If you measure your equalizer you will be able to determine which replacement you need. For example, the #013-144-03 Replacement Equalizer measures 7-3/4"…

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Answer 11

It sounds like you have an antiquated suspension design or it was installed that way aftermarket at some point. Replacing the bushing with bronze ones such as #D014-077-00 would help the bushing to last longer but may not completely solve the…

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Answer 12

We have the bushing that you are looking for! It is #14-69. It has a 1 inch inner diameter, 2 inch outer diameter, and it is 3 inches long. It is designed for Dexter 10 to 15K axles.

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