Converting From Disc Brakes to Electric Brakes on 1977 Airstream Sovereign 31
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.
Products Referenced in This Question
Replacement Trailer Hub Bearing - 25580
- Trailer Bearings Races Seals Caps
- Bearings
- Standard Bearings
- 1.750 Inch I.D.
- Bearing 25580
- Race 25520
- 10000 lbs Axle
- 6000 lbs Axle
- 7000 lbs Axle
- 8000 lbs Axle
- 9000 lbs Axle
- etrailer
more information >
Trailer Hub and Drum Assembly - 5,200-lb Axles - 6 on 5-1/2
- Trailer Hubs and Drums
- Hub with Integrated Drum
- Standard
- 25580
- LM67048
- For 5200 lbs Axles
- 6 on 5-1/2 Inch
- 14-1/2 Inch Wheel
- 15 Inch Wheel
- 16 Inch Wheel
- 16-1/2 Inch Wheel
- Dexter
more information >
Mounting Bolts and Hardware for 12" Brake Assemblies
- Accessories and Parts
- Trailer Brakes
- Electric Drum Brakes
- Hydraulic Drum Brakes
- Hardware
- 12 Inch
- Bolts
- Redline
more information >
Replacement Trailer Hub Bearing - LM67048
- Trailer Bearings Races Seals Caps
- Bearings
- Standard Bearings
- 1.250 Inch I.D.
- Bearing LM67048
- Race LM67010
- 5000 lbs Axle
- 6000 lbs Axle
- etrailer
more information >
4" Carbon Fiber Digital Caliper
- Hand Tools
- Measuring and Layout Tools
- Digital Calipers
- Carbon Fiber
- Performance Tool
more information >
Grease Cap, 2.44" OD Drive In - Qty 2
- Trailer Bearings Races Seals Caps
- Caps
- Standard Grease Cap
- 2.441 Inch O.D.
- TruRyde
more information >
Grease Cap, 2.44" OD Drive In with Plug - Qty 2
- Trailer Bearings Races Seals Caps
- Caps
- E-Z Lube Grease Cap
- 2.441 Inch O.D.
- TruRyde
more information >
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 >
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