Determining Correct Components To Replace Hydraulic Surge Brakes W/ Electric Brakes

Question

Question:

I am trying to figure out what hub I have but the trailer is 100 miles away. the hub started smoking. I think the surg brakes stuck and heated up the hub and back seal started dripping oil onto hot drum. on a 2000 boat trailer duel axle boat weight is 4200lbs. I see I got brake assembly from you guys Titan Uni-Servo Hydraulic Trailer Brake Assembly - 10inch part T1878800 Grease Seal part 168233 does that give enough info To know what hub and to switch it to electic brakes?

asked by: Shane F

0

Expert Reply:

I would be happy to help!

Based on the information of your current hub and drum assembly using Braking Assemblies # T1878800 and Grease Seal # 168233 that tells me that your axle more than likely uses standard 3500lb hub and drum assemblies.

You will need to confirm this by removing one of your hubs and look for the bearing numbers stamped in the face of each bearing as shown in the included picture of the # L44649.

If your bearings are worn to the point that you cannot read the bearing numbers you will need to use digital calipers # PTW80157 to precisely measure your spindles in the locations shown in the included diagram.

Standard 3500lb hubs uses inner bearing # L68149 which has an I.D. of 1.378" and outer bearing # L44649 which has an I.D. of 1.063".

If this matches your current hub and or spindle then for a replacement hub assembly you can use the etrailer Trailer Hub and Drum Assembly for 3,500-lb E-Z Lube Axles - 10" Diameter - 5 on 4-1/2 # AKHD-545-35-EZ-K.

Since you mentioned wanting to switch to electric brakes you would need electric trailer brake assemblies # 23-468-469 you were looking at.

Now to complete the conversion to to electric trailer brakes you will also need to add a 7-way connector and junction box to your trailer using # H20046 and # 38656. You will need to run # 10-1-1 from the junction box to the brake magnets on each braking assembly as well.

Next you will need to add a breakaway switch kit # C52042, and lock out your surge brake actuator. Depending on the specific actuator on your trailer you may be able to install a bolt through it to lock it out, or can have a qualified welder weld it up for you.

Lastly you will need to have a fully functional 7-way connector and trailer brake controller installed in your tow vehicle. If you do not then just let me know the Year/Make/Model of your tow vehicle and I would be happy to make a recommendation for you.

I included a few videos of the products mentioned, and a link to a helpful article on adding electric trailer brakes for you to take a look at.

expert reply by: Samuel C

0

Bearing Number Stamped In Face Of Bearing
(click to enlarge)

Where To Measure Spindle To Determine Inner and Outer Bearings
(click to enlarge)

Answer 1

In order to find out what you need for a replacement actuator you will want to start by finding out what kind of brakes you have. A different brake actuator is needed if you have drum brakes or disc brakes. You will also want to choose a…

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Answer 2

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 3

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Answer 4

I did some checking and the hub/drum we offer that will work for you is the part #8-430-5UC3. This uses the same bearings as the 8-415 and will be an exact fit aside from the fact this is a non-ABS setup and the 8-415 came in an ABS setup and…

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Answer 5

The 7290 that you see is a casting number. It is found on AL-KO hubs that fit #99 spindles. I found that the bearings used are #28580 which would be the inner bearing and #25580 which would be the outer bearing. For the seal use #91030.

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Answer 6

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 7

If your current springs have 5 leaves then going to a 7 leaf spring will increase the height of the trailer a little and make the trailer more susceptible to sway. Regarding capacity if you go with springs rated higher than what is required it will…

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Answer 8

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 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

From what I could find it looks like your 122R (red) and 122Y (amber) lights measure 3.75" x 1.70" x .81". We don't have any replacement lense directly for the GLO-BRITE lights but we do have some similar lights that you could use…

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Answer 11

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 12

I would be happy to help you set up your 2022 Toyota Highlander to haul your new travel trailer. The wiring harness you currently have controls your trailer's lighting functions only. You do not need to rewire your Toyota you just need another…

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Determining Correct Components To Replace Hydraulic Surge Brakes W/ Electric Brakes

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