How To Tell The Difference From Right and Left Electric Brake Assemblies

Question

Question:

To determine Right and Left break assembly orientation is the trailer viewed from front or back? Thanks for your service.

asked by: Chuck M

0

Expert Reply:

The right and left orientation is determined if you are standing behind the trailer looking towards the tow vehicle. The left side is the drivers side and the right side is the passengers side.

Tthe shorter brake pad will always be in the front of the assembly and the longer brake pad on the rear of the assembly, the reason is that the shorter pad will contact the drum first to slow the trailer down and the larger pad will then contact the drum to finish stopping the trailer, so both pads will wear evenly.

I am including a video link that will describe the position of the trailer brake assembly.

expert reply by: Jeff D

0

click to enlarge

Jennifer P.

7/3/2025

Hi. My trailer brake is flashing I have a short. I just did new brakes on the trailer and it seemed pretty standard. Left side has 3!wires right side has 2. Dumb question - left side - all three wires get wired together right -3 from the trailer to 2 in the brake? Thanks.

Jon G.

7/3/2025

@JenniferP Not a dumb question - trailer wiring can definitely be confusing if you're new to it. I have a few starter questions for you to check into but also let me know if you've already done these: 1. Did you connect the wires per function? Trailer wire colors aren't always reliable so it's always best to make sure the functions match. 2. Are all of your wiring connections still solid? Sometimes when replacing things that connect to wiring it's easy to either not clamp something all the way down, or forget to clamp something all the way down. 3. Do you have a strong ground connection both for your brakes and for the controller? A weak ground connection or even one that has some corrosion can throw the "short" code as well. Check on all that and if you're still having issues, let me know and I can help you get this figured out!

Answer 1

The left side is the driver side, right side is passenger side. On a trailer brake assembly like #23-105 the arm that the magnet is on points to the front of the trailer and the magnet always will be on the bottom. I have included a picture that…

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Answer 2

Hey Dan, thanks for reaching out. The Terran Axle Electric Trailer Brakes #TX97ZJ use a standard 4-bolt brake flange. The spacing between the bolt holes is 2-7/8" center to center. This is standard for modern 3,500 lb axles. Some older axles do…

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Answer 3

The braking performance will not be very good if you install brake assemblies on the wrong side of the trailer. The left side assembly is the driver's side (if the trailer were a car) and the right side is the passenger's side. The actuating…

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Answer 4

This could be a magnet wiring problem. It is unlikely that the magnets are bad on newer assemblies, but if the wiring is not properly connected, it could cause problems. Check to see that the magnets are properly grounded to a clean, bare metal…

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Answer 5

To replace the hubs on your trailer, I will need you to pull one of your hubs and look for the inner and outer bearing. On the face of each of these bearings, there is a number. That number will help me get you the correct hubs for your trailer. If…

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Answer 6

To determine what the correct replacement hubs are for your Magic Tilt trailer there is a little bit of information that we will need. We will need to find out inner diameter of both the Inner and Outer Bearings as well as the inner diameter of the…

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Answer 7

You are not wrong but at the same time you do not want trailer brakes to lock up. The brakes you have, #23-468-469, are self-adjusting but it takes some time for the shoes to extend out far enough for normal braking. This is why we recommend making…

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Answer 8

If you have self-adjusting assemblies like the Dexter Nev-R-Adjust Brake Kit #23-468-469 installed on your trailer, they will indeed continue to adjust as you pull the trailer around. It does sound like you performed the initial manual adjustment…

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Answer 9

Hey Joe, long time no see haha! So if you wanted the best cushioned equalizer for a 33 inch wheelbase the MORryde Alltrek 4000 kit part #MR89DR would be what you'd want. This is only option that has vertical and horizontal cushioning so it's…

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Answer 10

If you look at the backs of the brake assemblies there should be a hole where the magnet wires come out and a little opaque plastic strap. So if you are looking at the back of the assembly and those items are on the left then it is the left side…

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Answer 11

For your 7K Lippert Axle I'd go with the etrailer #AKEBRK-7-SA you were looking at. They will be a direct replacement, and will include both sides for one axle, if you have two axles, you're going to need two of these. I really like the…

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Answer 12

Hey Conner, thanks for reaching out! I'm attaching a link to our returns policy for your reference. You aren't the only one in this situation where tire chains like the Titan Chain Snow Tire Chains #TC1530 are required for travel but may not…

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How To Tell The Difference From Right and Left Electric Brake Assemblies

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