Complete Electric Brake Installation for 2,000 lb Trailer Axle

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Question:

Adding Trailer Brakes--The axle is 1 3/4inch and bearings are L44649

asked by: Marc L

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Expert Reply:

With the axle measurement and the bearing number, I can confirm that you have 2,000 lb capacity axles on your trailers.

You will want to get the Brake Mounting Flange, # 4-34, to weld onto each side of each axle. With that flange in place, you will want to mount the 7 inch Electric Trailer Brake Assembly # AKEBRK-2L on the left side of the axle and the # AKEBRK-2R on the right side of the axle. These are nearly identical parts, but installing on the correct side is very important.

The 7 Inch Trailer Hub and Drum Assembly for 2,000 lb E-Z Lube Axles with 5 on 4-1/2 bolt pattern, # AKHD-545-2-EZ-2K, will install on top of those Brake assemblies using the # L44649 bearings already included with this assembly. You may want to use a bearing packer like the LubriMatic Deluxe Bearing packer, # L70025. The grease we recommend is the LubriMatic LMX Industrial Strength Grease, # L11390, because it meets the toughest lubrication requirements and is rated for use in wheel bearings.

I've included a help article for wiring your trailers to utilize electric brakes as you will need to upgrade to the 7-Way connector. You will need an appropriate length of 10 gauge wire # 10-2-1 or 12 gauge wire # 12-2-1 to run power and ground wires to the brake assemblies. The 7-Way Molded Trailer Wire plug with Junction Box, # HS381-9000, will meet your needs to easily convert the wiring to utilize the new trailer brakes.

expert reply by: Jason S

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Answer 1

A 2,000 lb trailer axle like the Dexter Trailer Axle Beam part #T20BTR-7258 is not going to come equipped from the manufacturer with a brake mounting flange because of the weight of the trailer it is designed to be used on. However, most qualified…

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Answer 2

To determine the size of the brake assemblies you need you have to measure the depth and width of the hub drum on the axle like what you see in the picture I attached. The most common size is 2-1/4 inch wide like the #T4071600-500 that you…

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Answer 3

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 4

There really isn't a particular maximum trailer weight that is used to determine when brakes need to be added to both axles of a tandem axle setup. While I do still recommend checking your local laws, I am also not aware of any general laws that…

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Answer 5

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

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Answer 6

To find the load capacity for your axle you should look on the trailer VIN plate or sticker that lists the VIN number. The weight rating of the axle should be listed on that same plate or sticker. Also, the axle could have a tag or plate on it that…

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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

Depending on how the trailer was made, there will be a few spots you can check to identify the axle. First, if the trailer was pre-made by a specific company, you may be able to find this information in either the paperwork or on a placard somewhere…

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Answer 9

To determine the size of the hub assembly you need to purchase you have to determine which bearings are in the old assembly. If the old assembly has L44649 inner bearings, you would use the hub you chose #8-258-5UC1. If the inner bearings are marked…

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Complete Electric Brake Installation for 2,000 lb Trailer Axle

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