Comparing Single and Dual Servo Hydraulic Drum Trailer Brakes
Updated 02/09/2022 | Published 02/08/2022 >
Question:
What is the difference between regular uni servo and uniservo free backing?
asked by: Mike H
Expert Reply:
The only difference between single and dual servo hydraulic drum brakes is that dual servo will provide more force while in reverse than single servo. That said, it's not much and most really don't use their brakes a ton in reverse so single servo like the Hydraulic Trailer Brake Kit part # AKFBBRK-35 are far more common.
I have attached a list of our hydraulic brakes below, if you need help picking out a set I would just need your axle capacity.
Product Page this Question was Asked From
Hydraulic Trailer Brake Kit - Uni-Servo - Free Backing - 10" - Left/Right Hand - 3,500 lbs
- Trailer Brakes
- Hydraulic Drum Brakes
- Standard 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 >
Featured Help Information
Miscellaneous Media
Continue Researching
- Search Results: bearing kits trailer bearings races seals caps
- Search Results: 12 x 2 inch drum trailer brakes
- Search Results: 12" brake drum
- Search Results: trailer jack
- Search Results: jack
- Shop: Trailer Wiring
- Search Results: brake line
- Search Results: brake line fittings
- Video: Easily Install Your Curt Powered Tail Light Converter - 2026 Toyota Camry
- Shop: Dexter Hydraulic Drum Brake Assembly - Uni-Servo - 12" - Left Hand - 5,200 lbs
- Shop: Trailer Hitch
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Shop: etrailer Hydraulic Trailer Brakes - Uni-Servo - 10" - Left/Right - 3.5K
- Shop: etrailer Hydraulic Trailer Brakes - Free Backing - E-Coat - 12" - Left/Right - 5.2K to 7K
- Shop: Demco Hydraulic Brake Line Kit for Single Axle Trailers - Drum Brakes
- Shop: Demco Hydraulic Brake Line Kit - Drum Brakes - Single Axle - 15' Main Line
- Q&A: Replacement Drop Leg for the etrailer Boat Trailer Jack w/ Footplate MJSQ-2500B
- Shop: Dexter Hydraulic Drum Brake Assembly - Uni-Servo - 12" - Right Hand - 5,200 lbs
- Q&A: What is Difference Between Uni Servo and Duo Hydraulic Brake Assemblies for Trailer
- Q&A: Is it Advisable to Mix Different Types of Wheel Bearing Grease in Trailer Bearing
- Video: Comprehensive Review: Demco Hydraulic Brake Kit
- Video: Step-By-Step Installation for the etrailer Hub Bearing Kit - Utility Trailer
- Video: The Low-Down on the Mounting Bolts and Hardware for 12" Brake Assemblies
- Q&A: Replacement Boat Trailer Seal for AD2527
- Q&A: Brake Lines for Boat Trailer In Salt Water
- Video: A Closer Look at the Dexter Hydraulic Drum Brake Kit
- Video: The Low-Down on the Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Video: Demco Hydraulic Brake Line Kit Review
- Q&A: Replacement For Atwood 83000, 83010 Drum Brake Actuator & 10 Inch Free Backing Drum Brakes
- Shop: Suspension Enhancement

