Converting From Disc Brakes to Electric Brakes on 1977 Airstream Sovereign 31
Updated 08/19/2021 | Published 08/16/2021
Products Featured in This Question
Question:
Hello, Looking to convert from the factory hydraulic, disk brakes to electric on my 1977 Airstream Sovereign 31. I believe these are the parts I am need of? https://www.etrailer.com/Trailer-Brakes/etrailer/AKEBRK-7-SA.html https://www.etrailer.com/Trailer-Hubs-and-Drums/Dexter-Axle/8-201-5.html Thank you, Greg
asked by: Greg M
Expert Reply:
In order to verify if this is the correct hub and drum assembly you will need to check the bearing numbers. If the numbers are too worn, you will need to measure using a digital caliper like the # PTW80157. I have attached a photo of where you need to measure on your spindle.
We will assume you have this information since you already removed your hub and drum. The Dexter Trailer Hub and Drum Assembly # 8-201-5 is for 5,200 lbs axles and has a 6 on 5-1/2 bolt pattern. This uses a # 25580 inner bearing with a 1-3/4" inner diameter and # LM67048 outer bearing with a 1-1/4" inner diameter. If this matches what you have then this is the correct hub and drum assembly.
If the information for the hub and drum is correct then the Electric Trailer Brake Kit # AKEBRK-7-SA will also work. These fit 5,200 lbs axles and have a 5 bolt mounting flange bolt pattern, which it looks like you have in the picture. If you need mounting bolts and hardware I recommend the # BRKH12.
(click to enlarge)
Product Page this Question was Asked From
etrailer Electric Trailer Brakes - Self-Adjusting - 12" - Left/Right Hand - 5.2K to 7K
- Trailer Brakes
- Electric Drum Brakes
- Standard Grade
- Self Adjust
- 12 x 2 Inch Drum
- 5200 lbs Axle
- 6000 lbs Axle
- 7000 lbs Axle
- 14-1/2 Inch Wheel
- 15 Inch Wheel
- 16 Inch Wheel
- etrailer
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Search Results: trailer breakaway kit
- Search Results: trailer tires and wheels
- Shop: Hydrastar Electric Over Hydraulic Actuator for Disc Brakes - 1,600 psi
- Video: Best 2025 Nissan Frontier Trailer Brake Controller Options
- Video: HydraStar Electric Over Hydraulic Disc Brake Actuator Installation - 2020 Grand Design Momentum 5W T
- Shop: Hydrastar Marine Electric Over Hydraulic Actuator for Disc Brakes - 1,600 psi
- Shop: Brake Controller
- Q&A: Recommended Brake Controller for 2025 Nissan Frontier
- Shop: Curt Trailer Breakaway Kit with Trickle Charger, LED Tester, and 5 Ah Lead Acid Battery - Top Load
- Shop: Redarc Tow-Pro Liberty Brake Controller w/ Custom Harness - Dash Knob - Up to 2 Axles - Proportional
- Shop: Universal Mounting Panel for Redarc Tow-Pro Trailer Brake Controller Control Knob
- Shop: Redarc Tow-Pro Trail Brake Controller w/ Custom Harness - Dash Knob - Off-Road Mode - Up to 3 Axles
- Article: 7 Common Questions Everyone Has About Trailer Tires
- Q&A: Converting Trailer from Surge Brakes to Electric Brakes
- Search Results: grease cap
- Search Results: rv water pump
- Shop: Grease Cap, 2.44" OD Drive In - Qty 2
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Search Results: trailer hitch
- Shop: Trailer Hitch
- Video: How to Choose a Trailer Brake Controller
- Article: Trailer Wiring Diagrams
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Wiring
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Search Results: trailer wiring
- Q&A: Installation Time for Blue Ox BX1128 Flat Tow Base Plate Kit for 2016 Jeep Grand Cherokee
- Shop: Suspension Enhancement
- Article: How to Measure for Trailer Hitch Drop
- Video: Redarc Tow-Pro Liberty Brake Controller Review RED24FR
on Trailer Brakes
