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This Old Trailer: Electric Trailer Brake Installation Part 1

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Part 1 of Electric Trailer Brake Installation Episode of This Old Trailer

Alright, today on This Old Trailer, what we are going to do is install electric brakes. Right now this trailer does not have any brakes on it whatsoever, so it has two drag axles. So the first thing that we need to do is go ahead and take off the rear wheels. And then we will go ahead and take off the hubs. At this point we will take off the dust cap on our axle. And basically what you want to do… see more >     

Heidi K.


Hi, great video! what kind of grease do you use in the hubs and bearings? Is there a special high temperature grease for brakes?

Etrailer Expert

Rachael H.


We use the UltraLube Biobased Red Grease # L20321 for repacking the bearings and on hubs. This grease is recommended for high temperature applications. You want to make sure that you don't get any grease on the braking surfaces.



The shoes on my airstream have been played with by a former owner. My question is : There is one shoe longer that the other, which is the lead shoe? To the front or back that is the only difference in the shoes. Thiosd is on a 73 duel axel that has been sitting for many years hense I am checking out all systems. The wires were cut to the brakes so that is why I have taken on this project.

Patrick B.


The shorter shoe is the lead shoe, it should face the front of the trailer.

Dale K.


Can you use electric brakes on a boat trailer?

Patrick B.


It is not recommended to use electric brakes on a boat trailer as the water could easily short circuit them. They could be used if you made sure to disconnect and reconnect every time you launched or retrieved boats from the ramp, but that proves to be a hassle and if you do not allow enough time for the brakes to dry before reconnecting, you could again short them out. It is best to stick with hydraulic brakes only, on a boat trailer.



When installing the electric brakes with the backing plate. is there a lub made for the magnet so it does not make a lot of noise when applying the brakes?What about the shoes where attached to the backing plate are these lubed or just let run day?Thanks for your timeBest Regards,TJ

Patrick B.


No lube should be used on the magnets. With a lube the magnets would not be able to properly grip the drum to activate the brakes. A thin coat of oil on the hinge point for the shoes at the top of the assembly would be fine. Just make sure it does not get on the surface of the brake shoes. Once a year before the start of your towing season, you can pull the drum off and add a dab of oil to that hinge. You can work it into your brake adjustment routine each year. It will also give you the chance to visually inspect the magnets and shoes and make sure they have not worn down.

Info for these parts were:

Employee Zack K
Video Edited:
Zack K
Employee Jacob T
Video Edited:
Jacob T
Employee Jeff D
Installed by:
Jeff D
Employee David F
Installed by:
David F
Employee Dustin K
Video by:
Dustin K

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