I like using the butt splices with the heat shrink made with them now. I used to do it the way you did and wrap in tape for years. Especially on those outside connections, they will eventually turn white from moisture corrsion and cause a high impedance connection. The waterproof connectors and my battery powered heat gun makes it quick. Just rewired a 53' horse trailer today that the cable for the lights got pinched in the goose neck air bag plate and crushed it. Replaced back to the connector box with new ring terminals and good to go. You're right, those scotch loks are junk. They are fast and easy, but cause headaches down the road.

Thanks for the info. Just picked up an old bumper pull 10k equipment trailer. Replacing all the floor boards now, got as far as removing them. Lights work however I found those blue garbage connectors . Thinking it would be easier to rewire before I install new decking. The info in your video, the use of a junction box and showing the bad wires made me decide redoing all the wiring is definitely a good decision. Thanks again for the info!

Knew the background looked familiar saw u pull in across from the sale yard there , clean 3500 🤙🏻🤙🏻

Glad you posted this, I now know why my electric brake wire failed 🤘

I would have used another terminal block in the back of the trailer

Where do you buy 7 way wire?

Music comes in a little heavy.👂

Hello bobby "j"

What is it with you Yanks? I've seen so many rewires on US trailers just a couple years old that I'm pretty sure by now that you guys start out with complete junk. In European we start with galvanized chassis and waterproof wood. That combination lasts decades. Same for the lights. Most used here are companies like Aspöck, Hella, Vignal and so on. All capable companies with wiring systems that last a decade without a problem. So is it me or do you guys start with junk? Because a 4 year old wire with brittle insulation a very, very rare thing here in Europe.

I have to rewire my 1978 fruehauf liquid fertilizer tanker. The wires are eat up and dry rotted. It’s a mess.