Which ABS Brakes Are Good To Replace Old Ones On 2022 Airstream Classic 30RB ?
Updated 11/03/2025 | Published 10/28/2025
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Question:
I have a 2022 Airstream Classic 30RB. How can I tell if I have 7K or 8K Dexter ABS brakes before ordering?
asked by: Ryan
Expert Reply:
Ryan, start with looking at the axle tube so you don't have to get your hands too dirty just to check what parts you need:
~3 inch tube with 7K Tow Assist hubs = order the # DX69WR Left and # DX79WR Right
~3-1/2 inch tube with 8K Tow Assist hubs = order the # DX55WR
If you’re checking bearings, remember both use 25580 inners. 7K can have 14125A / 15123 / 02475 as the outer 8K is 02475 outer only. Since bearings can overlap, the tube diameter and/or axle tag is the simplest way to nail it. There is also typically a code stamped into the hubs. Let me know if you have any trouble!
Product Page this Question was Asked From
Dexter Electric Trailer Brake for Dexter ABS Tow Assist - 12-1/4" - Left/Right Hand - 8K
- Trailer Brakes
- Electric Drum Brakes
- Standard Grade
- ABS
- Self Adjust
- 12-1/4 x 3-3/8 Inch Drum
- 8000 lbs Axle
- 15 Inch Wheel
- 16 Inch Wheel
- 16-1/2 Inch Wheel
- 17 Inch Wheel
- 17-1/2 Inch Wheel
- Dexter
more information >
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Ryan
11/3/2025
Thanks Andrew! Just measured and my tubes are right at 3", so looks like I’ve got the 7K axles. I’ll go ahead and order the #DX69WR and #DX79WR. Do I need to do anything special after install for the ABS to recalibrate?