Hydraulic Drum Brake Conversion on 2006 Karravan Dual Axle Boat Trailer
Question:
I have a 2006 Karravan, dual axle, boat trailer with 14inch wheels. It has disc brakes which I want to switch to drum. The axle looks like a Dexter with a 4 bolt, 2 7/8inch bolt to bolt pattern. The surge brake is rated at 7000# so I believe the axles are 3500# each. Will I have trouble connecting the existing caliper rubber flex line to the wheel cylinder? It appears I need 2 AKFBBRK-35-D, correct? I need heavy salt corrosion protection.
asked by: Richard V
Expert Reply:
The 4 bolt mounting you are measuring is the standard size for your axle size. They will be compatible with hydraulic drum brake assemblies. For your brake assemblies, I recommend the Hydraulic Brake Kit - Dacromet # AKFBBRK-35-D you referenced. These will mount using the Mounting Bolts and Hardware for 10" Single Brake Assembly # BRKH10AS.
For your hubs, I recommend the Trailer Hub and Drum Assembly - 3,500-lb Axles - 10" Diameter - 5 on 4-1/2 - Galvanized # AKHD-545-35-G-K. These will have the salt corrosion protection.
The brake lines including the flex line to your current calipers will not be an issue for your wheel cylinder conversion, but your master cylinder in your brake actuator will be too strong and will need to be replaced. If you let me know what surge brake actuator you have, I can help you get the correct replacement to reduce the psi to the correct level for drum brakes.
Products Referenced in This Question
Trailer Hub and Drum Assembly - 3,500-lb Axles - 10" Diameter - 5 on 4-1/2 - Galvanized
- Trailer Hubs and Drums
- Hub with Integrated Drum
- Standard
- L68149
- L44649
- For 3500 lbs Axles
- 1/2 Inch Stud
- 5 on 4-1/2 Inch
- 13 Inch Wheel
- 14 Inch Wheel
- 14-1/2 Inch Wheel
- 15 Inch Wheel
- etrailer
more information >
Mounting Bolts and Hardware for 10" Single Brake Assembly
- Accessories and Parts
- Trailer Brakes
- Electric Drum Brakes
- Hydraulic Drum Brakes
- Hardware
- 10 Inch
- Bolts
- Redline
more information >
Product Page this Question was Asked From
Hydraulic Brake Kit - Uni-Servo - Free Backing - Dacromet - 10" - Left/Right Hand - 3,500 lbs
- Trailer Brakes
- Hydraulic Drum Brakes
- Marine Grade
- Free Backing
- Manual Adjust
- Single Servo
- 10 x 2-1/4 Inch Drum
- 3500 lbs Axle
- 14 Inch Wheel
- 14-1/2 Inch Wheel
- 15 Inch Wheel
- etrailer
more information >
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