Parts Needed to Swap Hydraulic Brakes to Electric Brakes on a 1998 Jayco Eagle 12 UDK

Question

Question:

looking to replace the brakes on a 1998 Jayco Eagle 12UDK. has a 2500lb axle and hydraulic brakes. bought used, brakes have not been used in years from what i see. want to install electronic brake setup. have not been able to definitively find a electronic replacement. any info would be very appreciated.

asked by: Nicholas R

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Expert Reply:

We can definitely get you the parts needed to swap over to electric brakes, but the 2,500 pound hydraulic brakes will end up being a different size than their electric counterparts.

With that being said, the etrailer.com Electric Trailer Brake Kit - 7" - Left and Right Hand Assemblies # AKEBRK-2 will technically only be rated to 2,000 pounds, but the 4 bolt pattern on the backing plate will bolt directly to your axle. From what I could find, your 1998 Jayco Eagle 12 UDK came from the manufacturer weighing just under 1,700 pounds, so these should be perfectly fine for you. However, with these brakes being a different width than your current hydraulic ones, you will need to replace the hubs/drums as well.

The correct option for this will depend on your bearing numbers and wheel bolt pattern, though. The first 2 options will have a 5 on 4 1/2 bolt pattern, but will use different bearing numbers. The etrailer.com Trailer Hub and Drum Assembly # AKHD-545-2-EZ-1K will use # L44643 inner and outer bearings and the # AKHD-545-2-EZ-2K will use # L44649 inner and outer bearings. If you have a 4 on 4 bolt pattern, we have the Dexter Trailer Hub and Drum Assembly # 8-173-16UC3-EZ, but these are only available with # L44649 bearings.

To get the brakes wired up, you will need some wiring, like the Deka Jacketed 2 Wire, 10 Gauge, Brake Wire - per Foot # 10-2-1, but you will need to measure to determine how much will be needed. The Hopkins Engager Push-To-Test Trailer Breakaway Kit # 20099 is highly recommended if there is no break away system already installed. The Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector # HS381-9000 will make all this wiring significantly easier to get installed as well.

I included some videos and help articles that will help with identifying your bolt pattern and everything that will be needed to convert over to electric brakes.

The final thing you will need is a brake controller to get the brakes working while towing. There are lot of different options and styles for this so if you let me know the year, make, and model of your vehicle and how often you will be towing, I can definitely get you a good recommendation.

expert reply by: Lazer S

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Answer 1

The wheel cylinder on the Hydraulic Trailer Brake Kit #AKUBRK-35 you were looking at uses the standard 3/8" x 24 Threads Per Inch brake line fittings. I included a video of the Kit #AKUBRK-35 for you to take a look at.

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Answer 2

I have attached a chart you can check out that describes the torque needed per wheel size, wheel stud size and material. For an 8-inch wheel with a 1/2-inch wheel stud the torque is 75 to 86 ft-lbs. For a 15 inch steel wheel with 1/2 inch wheel studs…

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Answer 3

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 4

I've never heard of an actual third brake light connector on a camper shell to plug in on a truck and we don't carry any parts to do that. The light generally needs to be hardwired into the truck's brake light circuit. The issue with this…

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Answer 5

If you are needing the hub and drum assembly then you will want to go with the Dexter Trailer Hub and Drum Assembly #8-201-5UC3-EZ but if you are just looking for an idler hub then you will want part #8-213-5UC1 instead. These come with the correct…

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Answer 6

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 non-ABS…

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Answer 7

I have a solution for you, but we do not carry Glo-Brite lights, so replacing it with the same brand will not be something I can offer you. Instead, to replace your Glo-Brite 9852-88, I recommend using the Optronics LED Trailer Tail Light #STL72RB.…

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Answer 8

If the trailer wheels scrubbed (dragged and scrapped the ground instead of rolling) when jack knifed then it could have thrown something out of alignment or damaged something. First, inspect the suspension. Look for any elongated holes where…

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Answer 9

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 10

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 11

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 12

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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