Converting from Electric to Hydraulic Disc Brakes on 2021 Jayco Eagle HT 280RSOK Travel Trailer

Question

Question:

Hello, I would like to upgrade my OEM brakes to disc. I have a 2021 Jayco Eagle HT Travel Trailer. 280RSOK. Also, I would install the upgrade the equalizers etc. Any help finding the correct kits would be appreciated. Thank you

asked by: Russ T

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Expert Reply:

A kit like the # HSE7K-T1 is designed to fit 7k axles and has a bolt pattern of 8 on 6-1/2. Based on the available information for your 2021 Jayco Eagle HT 280RSOK it either has 5,200 lb or 6,000 lb axles and a 6 on 5-1/2 bolt pattern. I recommend verifying your axle capacity to be sure. Based on this information I recommend the following:

-Kodiak Disc Brake Kit - 12" Hub/Rotor - 6 on 5-1/2 - Dacromet/KodaGuard - 5,200 to 6,000 lbs # K2HR526DKG

-Bearing Kit for Trailer Brakes with 12" Hub/Rotor - Easy Grease - 5,200 lbs to 6,000 lbs # DBRKHW6EZ

-Hydrastar Electric Over Hydraulic Actuator for Disc Brakes - 1,600 psi # HBA16

-Hydrastar Hydraulic Brake Line Kit - Tandem Axle - 25' Long, 3/16" Main Line # HS496-252

The Kodiak brakes work with 5,200 lb and 6k axles so whichever you have they will fit. Since they don't come with bearings you will also want to add the bearing kit. The Hydrastar EOH actuator will allow you to send power to the brakes using the brake controller you have now. Finally, the brake line kit comes with all of the brake lines and fittings required to run brake fluid from the actuator to your brakes.

To find the best upgraded equalizer you will need to measure what you have now. The best choice is going to be the one that has the closest measurements to your factory equalizer. The most important measurement is the distance between outer shackle bolt holes on center. For example, the # K71-652-00 measures 5-3/4" so if that matches or closely matches what you have it would be a good replacement. This kit also includes wet bolts and heavy duty shackles.

If you can let me know your equalizer measurements I would be happy to help you find the best upgraded equalizer for your travel trailer.

expert reply by: Robin H

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K71-652-00 Measurements.
(click to enlarge)

Answer 1

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 2

Hey Richard, thanks for reaching out! The Dexter DX7.5 Drop-N-Go Brake Actuator #099-175-00 is a great option for a replacement actuator because it's a direct replacement for the common Model 60 actuators that were popular in the '90s.…

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Answer 3

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 4

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

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Answer 5

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

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Answer 6

Traditionally, trailer manufacturers did not use electric brakes on boat trailers because the brake magnet wiring and trailer wiring did not always have the best insulation or water protection. These days, more and more manufacturers are using…

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Answer 7

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 8

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 9

The recommended lug nut torque for your 7,000lb axle depends on a few factors like wheel size, stud size etc. Check out the attached photo which shows the torque specs for a variety of applications. I see you were looking at the Dexter Nev-R-Adjust…

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Answer 10

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 11

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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Answer 12

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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