How To Measure a Trailer Braking Assembly for Replacement
Updated 04/21/2020 | Published 04/18/2020 >
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Question:
when measuring brake drums, are they measured at the inner diameter For replacement electric brake parts
asked by: Chris M
Expert Reply:
In order to measure a brake assembly for replacement you need to do so from the inside of the drum on the contact surface for the shoes which you can see in the attached photo. The two most common sizes are 10" x 2-1/4" like the Electric Trailer Brake Kit part # AKEBRK-35-SA and 12" x 2" like the Electric Trailer Brake Kit part # AKEBRK-7-SA.
I have attached a full list of options below as well.

Product Page this Question was Asked From
etrailer Electric Trailer Brakes - Self-Adjusting - 10" - Left/Right Hand Assemblies - 3.5K
- Trailer Brakes
- Electric Drum Brakes
- Standard Grade
- Self Adjust
- 10 x 2-1/4 Inch Drum
- 3500 lbs Axle
- 13 Inch Wheel
- 14 Inch Wheel
- 15 Inch Wheel
- etrailer
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