Where to Measure on Trailer Spindles to Determine Replacement Hubs
Updated 02/17/2026 | Published 06/17/2024
Products Featured in This Question
Question:
Want to retro fit brakes on a dump trailer with agurculture axles 6on 6 hubs is the a drum I can use to make this happen ? Or hub I can swap swap on to the ag spindles to use brake drums ?
asked by: Mike
Expert Reply:
I am sure there is but I would need you to take some measurements off of your current spindle or bearings so I can find the right hubs. The easiest way to do this would be to pull one of your hubs and get the part numbers off of the sides of the bearings. If there aren't any you'll need to measure the diameter of the spindles where the seal and bearings ride.
Check out the picture I attached that shows where this is. You will need an exact measurement so either a digital caliper like item # PTW80157 will be needed.
If you could message me back or comment below with that information I would be happy to find you the right hubs and brakes.
(click to enlarge)
Product Page this Question was Asked From
Agricultural Trailer Hub Assembly for 7K Axles - 6 on 6 - Wheel Studs
- Trailer Hubs and Drums
- Idler Hub
- Agricultural
- JL69349 / LM67048
- Standard Grade
- For 7000 lbs Axles
- 6 on 6 Inch
- TruRyde
more information >
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on Trailer Hubs and Drums
Jerred H.
2/17/2026
Hey, were you able to get those spindle or bearing measurements for your dump trailer’s ag axles? Once you have them, I can help match the right hubs and brakes. Let me know what you find—I’m here if you need a hand narrowing it down.