Parts Needed To Add Electric Drum Brakes To A Trailer

Question

Question:

Hello, I have a trailer that I want to add electric breaks to. It has flanges. I have a 2018 Silverado 1500. The trail has a flat 4 plug. Can you recommend the wire kit and plug that I need?

asked by: Jesse S

0

Expert Reply:

To determine the correct brakes for your trailer we'll need to first know the axle capacity. The Dexter Electric Trailer Brake Kit # 23-26-27 you were looking at are designed for 3,500lb axles. From there you'll need a hub/drum assembly, which will require knowing your bearing and grease seal numbers and your wheel's bolt pattern. If you can't read the numbers on your bearings and grease seal then you can measure the spindle at points B, C, and D to get the inner diameter so that we can verify the correct fit.

If you had a 3,500lb axle with a 5 on 4-1/2 wheel bolt pattern then you could use a hub/drum kit like the Easy Grease Trailer Hub and Drum Assembly for 3.5K Axles - Pre-Greased # AKHD-545-35-EZ-K. This kit would come with the bearings and grease seal and would already have the bearings packed for you.

From there you'd need to install a 7-way and junction box on the trailer. You can get both of these together with part # e99011. I would just cut off the 4-pole wiring where you set the junction box and save the rest of the cable in case you need some extra later on. The wiring functions for this cable are as follows:

Black: 12 volt power
Yellow: auxiliary or reverse signal
Red: left brake and turn signal
Green: running lights
Brown: right brake and turn signal
Blue: trailer brakes

From there you'll need to run 10 gauge wire # 10-1-1 from the junction trailer brake terminal to the brake assemblies. You'll also need to install a breakaway battery like the Bright Way Push-to-Test Trailer Breakaway Kit # 3802308. You'll also need a trailer brake controller in the Silverado in order to send the signal to the brake assemblies. I recommend the Redarc Tow-Pro Liberty Brake Controller # RED24FR along with the Redarc Plug-and-Play Wiring Harness for Tow-Pro Trailer Brake Controllers # 331-TPH-010. I have this brake controller in my Silverado and love how easy it was to install and use.

expert reply by: Kevin C

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Spindle Bearing Measurements
(click to enlarge)

Answer 1

In regards to the Bright Way Push-to-Test Trailer Breakaway Kit with 1-Amp Charger and 5 Ah Battery part #3802308, the red wire from the breakaway battery box goes to the battery charge line circuit also known as the twelve volt power supply on the…

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Answer 2

If your vehicle has a factory brake controller plug, you can simply use the Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers – Ford, Item #3034-P, which will connect to the vehicle plug and the brake controller. On the new E-450…

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Answer 3

To see all of the correct wheel and tire combos you'd need check out the link I attached. The option I would recommend is the part #TA43RR which is a Load Range C tire size ST175/80R13 mounted on a white spoke wheel with a bolt pattern of 5 on…

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Answer 4

The manual lockout on your Atwood 85778 surge brake coupler is there so that you can back up the trailer without the brakes locking up on you. Yes you can safely tow your trailer with the broken manual lockout, you just have to make sure you…

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Answer 5

The number you provided, "7753400" is a patent number which corelates to the Equalizer for E-Z Flex Suspension part #013-144-03. This is for a single equalizer but if you need the entire kit it's the Dexter E-Z Flex Suspension Kit part…

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Answer 6

I would love to help you upgrade the suspension on your Twilight 2800 travel trailer. The MORryde Rubber Equalizers for Tandem Axle Trailers #MR87ZR that you referenced are a great solution but we do need to double check a few things. First is that…

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Answer 7

Hey Jeremy, Typically with boat trailers the manufacturer will install hydraulic surge brakes because you don't have to worry about the water damaging wires like you would with electric brakes. That being said, if you use a heat shrink butt…

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Answer 8

The only way you could power interior dome lights on a trailer without it being connected to a tow vehicle would be to power the lights with a battery like a breakaway battery. How you choose to wire up the batteries will in the end be up to you, but…

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Answer 9

For your enclosed trailer application I have several suggestions for adding interior lighting that you can control directly via a switch. Since your current 4-pole trailer wiring does NOT include a 12V auxiliary power feed that could power inside…

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Answer 10

The proper replacement inner assembly member for your UFP 34043 would be indeed be the the Dexter #DX99FR which is compatible with disc brakes. The replacement has an electric lock out and has a 7500K capacity and is intended to work with a 2 inch…

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Answer 11

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 12

While we may have an option for you, we do not have the exact specs on your Allis grease seal part number 5013 29772. However, with the 1.6" ID and 2.5" OD measurements you provides, that is very close to our #58846. This particular grease…

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