How to Determine Which Side of Trailer a Brake Assembly Should Install On

Question

Question:

Left or right brakes,I recently have had new dexter brakes installed on my trailer I suspect they ate not on the correct side of the trailer. Could I send you a pic of the stamp on the backing plate to see if it is correct? They are 10inch brakes on 3500lb axles

asked by: Greg R

0

Expert Reply:

The easiest way to tell if a trailer brake assembly is installed on the correct side of the trailer is to pull the hub off and look at the actuating arm. The arm should be in front of the spindles on the side closer to the front of it. See attached picture.

The picture you sent in I believe is for the right hand side but without a part number listed on that stamping it's hard to determine for sure.

expert reply by: Jameson C

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Answer 1

Hi Calvin! All of the pre-greased hubs/drums, like the Terran Industries Trailer Hub and Drum Assembly - 3.5K Axles - 10" Diameter - 5 on 4-1/2 #TX68VJ, come with bearings made overseas and are all basically the same quality. At least that I…

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Answer 2

If you look at the wheel cylinder of the brake assemblies part #23-399 and #23-398 you'll see the letters L and R stamped on them. The R means right hand side and L means left. I attached a picture that points out the letter. Right side means…

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Answer 3

If nothing is noted on the axle or outside of the brakes for the front or rear, you can remove the front hub and take a look at the brakes. The magnet is always on the bottom of the assembly and the actuating arm for the brakes always bows toward the…

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Answer 4

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 5

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 6

A brake magnet such as the one on the Hayes/AL-KO #185100 that you referenced or the brake magnet depicted in your photo does not visually look “worn out” and they do not have hole type wear indicators. If the inner coil of the magnet is exposed then…

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Answer 7

After you've packed the bearings and assembled everything, carefully slide the hub assembly onto the spindle and install the outer bearing. Install the spindle and tang washer and run the spindle nut down finger tight, then rotate the hub back…

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Answer 8

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 9

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 10

The #84 spindle is just a common way to identify the spindle dimensions typically used for 3,500 lb axles. So instead of listing out the parts, people can just say they have #84 spindles and it's easier to know what fits it. The CE Smith Trailer…

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Answer 11

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 12

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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How to Determine Which Side of Trailer a Brake Assembly Should Install On

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