Availability of Free-Backing 3,500 lb Drum Brake Assemblies
Updated 09/12/2025 | Published 08/16/2025
Question:
Hi, I want to replace my trailer brakes on a 25 YO 3500 2 axle trailer with hydraulic drum brakes on front. They are 10X2 1/4 pad size Can I use free backing brakes? I do not have any back up devices.
asked by: David
0
Expert Reply:
Hey David, yes you can go with a set of free-backing plates like the Demco Hydraulic Trailer Brakes # 40716-15 that you referenced. These are correct for a 3,500 lb axle like you have as well. Does your surge actuator not have a reverse lock out?
expert reply by:
Jameson C
0
Product Page this Question was Asked From
Demco Hydraulic Trailer Brakes - Free Backing - Galvanized - Left/Right - 10" - 3.5K
- 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
- Demco
more information >
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Jameson C.
9/12/2025
Hey David, did you find out if your surge actuator has a reverse lockout? If you're still working on this, I'm happy to help!