Will Hydrastar Disc Brakes Fit 2017 Forest River With 3,500 lb Lippert Axles

Updated 09/16/2025 | Published 09/07/2025

Products Featured in This Question

Hydrastar Disc Brake Kit w/ Actuator for Tandem Axle Trailers - Slip On Rotor - 5 on 4-1/2 - 3.5K

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$1477.51

Hydrastar Disc Brake Kit w/ Actuator for Tandem Axle Trailers - 10" Rotor - 5 on 4-1/2 - 3.5K

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$1549.38

Redarc Tow-Pro Liberty Brake Controller w/ Universal Wiring Harness - Dash Knob - Proportional

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$217.00

Question:

I would like to purchase disc brake kit HYD34VR, I have 2017 forestriver RV trailer with lippert dual 3500lbs axles. Will this kit fit my hubs and second question, what brake controller is recommend this kit.

asked by: Kirk

Expert Reply:

Hi Kirk; the Hydrastar Disc Brake Kit # HYD34VR will fit idler hubs with a 5 on 4-1/2 bolt pattern. I'm guessing you already have electric brakes on your trailer so you have hub and drum assemblies on their now. Instead of picking up separate idler hubs to make this kit work I recommend getting the Hydrastar Disc Brake Kit # HYD22FR. This includes hub-and-rotor assemblies that are one piece so separate hubs are not required.

For a brake controller I recommend the Redarc Tow-Pro Liberty # RED52VR. This brake controller is simple, reliable, and won't take up space in the cab of your tow vehicle. The main unit installs behind the dash so only the control knob is visible. This gives it an OEM look as well. What tow vehicle do you have? This is the universal kit, custom wiring harnesses may be available for a plug and play installation if you can give me your vehicle information.

expert reply by: Robin H