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Recommended Disc Brake Conversion Kit for a Trailer w/ 8K Dexter Axles and 9/16" Wheel Studs  

Updated 05/29/2026 | Published 05/25/2026

Question:

Looking for disc brake upgrade kit for 2026 Alliance Valor 37v11. Tandem 8K dexter axles 17-1/2 Inch Wheel 8 on 6 1/2 9/16 wheel studs

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Expert Reply:

Congrats on the new 5th wheel Trailer Jeff! To convert your 2026 Alliance Valor 37v11 to disc brakes you'll need the following parts:

2 Sets - Kodiak Disc Brakes item # KOD69VR

1 - Hydrastar Electric Over Hydraulic Actuator Kit for Disc Brakes item # HBA16-252-82

The Kodiak Disc Brakes item # KOD69VR is going to be the best option for both quality and longevity. There is a E-coat finish applied to the calipers and brackets that protects them against rust and corrosion. The hubs have an oil bath system that will do a superior job of lubricating the bearings compared to grease. The oil flows freely which keeps the bearings cooler and does a better job of reducing friction. Plus you can visually look at the levels through the clear caps.

The Kodiak Disc Brakes item # KOD69VR comes with all the brackets, mounting hardware, rotors, calipers, and pads you'll need to convert one axles worth of hubs over to disc brakes. They have 9/16" lug studs and work with 17-1/2" wheels.

The Hydrastar Electric Over Hydraulic Actuator Kit for Disc Brakes item # HBA16-252-82 includes all the brakes lines, fittings, breakaway kit, and actuator you'll need to operate your new brakes. The main brake line is 25' long, which is definitely what you'll need for your 2026 Alliance Valor 37v11.

Please note that the Actuator included with the item # HBA16-252-82 kit does require your brake controller to have an Electric Over Hydraulic setting. It is compatible with factory brake controllers.

What brake controller do you have in your tow vehicle?

You can add this information, along with any other questions you have, where it says Add Comment.

expert reply by:
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Jerred H
HBA16-252-82
HBA16-252-82
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KOD69VR
KOD69VR
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KOD69VR
KOD69VR
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Jeff S. profile picture

Jeff S.

5/29/2026

have a factory installed brake controller on 2024 GMC 3500 Dually. Will this be compatible with the Hydrastar Electric Over Hydraulic Actuator?

Jerred H. profile picture
Etrailer Expert

Jerred H.

5/29/2026

@JeffS Yes, it does but in some instances you may need an additional diode from Hydrastar pn 381-7075 if you get the Service Trailer Brakes alert on your dash. The brake controller still operates the actuator but the alert stays on the dash. The GM factory brake controller sends a diagnostic check down the blue brake wire. Since EOH systems draw power differently than traditional electric drum brakes, the GM controller doesn't always get the expected response so it flashes an alert.

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