Do Hub/Rotors of Hydrastar Disc Brake Kit Stick Out Further Than Hub Drums
Updated 11/17/2025 | Published 12/04/2024 >
Question:
Hi All, Im considering converting to this brake system. I have Dexter D52 axles with brakes that will not stop my enclosed car trailer, even at 10 on my controller, and its caused me several white knuckle instances. My trailer is always at 9500 lbs loaded going to the track. My question however is: I was told these disc brake conversions set the wheels out further than the drums have them now. Is this true? Is there any offset difference when installed? And: Im running 15inch wheels. Will there be any clearance issues with this size rim? Thank you in advance, Kurt
asked by: Kurt R
Expert Reply:
Hey Kurt, the hub/rotors that come with the Hydrastar Disc Brake Kit w/ Actuator for Tandem Axle Trailers # HYD74VR that you referenced do not stick out any further than the hub/drums you have now. These also easily fit behind 15 inch wheels as well so this kit will fit well and drastically improve your trailer's stopping power.
Product Page this Question was Asked From
Hydrastar Disc Brake Kit w/ Actuator for Tandem Axle Trailers - 12" Rotor - 6 on 5-1/2 - 6K
- Trailer Brakes
- Disc Brakes
- Standard Grade
- 6 on 5-1/2 Inch
- Hub and Rotor
- 6000 lbs Axle
- 15 Inch Wheel
- 16 Inch Wheel
- Hydrastar
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: Hydrastar Disc Brake Kit w/ Actuator for Tandem Axle Trailers - 12" Rotor - 6 on 5-1/2 - 6K
- Q&A: Do the Hydrastar Disc Brake Kits Include Kodiak Brakes?
- Shop: Hydrastar Disc Brake Kit w/ Actuator for Tandem Axle Trailers - 13" Rotor - 8 on 6-1/2 - 7K
- Shop: Replacement Spindle Washer - Tang Type for E-Z Lube
- Shop: Easy Grease Trailer Hub and Drum Assembly for 5.2K & 6K Axles - 12" - 6 on 5-1/2 - Pre-Greased
- Shop: Hydraulic Brake Kit - Uni-Servo - Free Backing - Dacromet - 12" - Left/Right Hand - 5.2K to 7K
- Shop: Trailer Wiring
- Video: Review of Hydrastar Trailer Brakes - Tandem Axle Disc Brake Kit with Actuator - HYD74VR
- Search Results: hardware
- Q&A: What Is The Difference Between The Hydrastar Disc Brake Kits HYD44VR and HYD74VR?
- Q&A: Bleeding Brake Lines During Installation of HydraStar Electric Over Hydraulic Actuator HBA16
- Shop: Gustafson RV Drawer Pull Handle - Satin Nickel - Qty 1
- Search Results: trailer breakaway kit
- Search Results: brake away
- Search Results: trailer drum brake pads
- Search Results: disc brakes
- Search Results: free backing trailer brakes
- Search Results: titan 2 5 16 ball coupler
- Shop: Curt Trailer Breakaway Kit with Trickle Charger, 5 Ah Battery, and Clamp-On Case - Top Load
- Q&A: How to Determine Correct Torque Setting for New Disc Brake Setup on Boat Trailer
- Q&A: Parts Needed to Add Electric Brakes to ShoreLand'r Boat Trailer
- Article: Trailer Wiring Diagrams
- Shop: Trailer Hitch
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Video: Curt T-Connector Vehicle Wiring Harness Review C56040
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Shop: Suspension Enhancement
- Video: How to Choose a Trailer Brake Controller
- Article: How to Measure Your Trailer Wheel Bolt Pattern


Jameson C.
11/17/2025
Hey Kurt, how did the Hydrastar disc brake kit work out on your enclosed car trailer? It sounds like it should have made a big difference in stopping power. Sharing how it performed could help others thinking about the same upgrade.