Do I Need to Have a Castle Nut or Cotter Pin to Keep Spindle Nut From Backing Off
Updated 04/28/2025 | Published 09/06/2022
Question:
i replaced my bearings on my 1993 bass tracker boat trailer, and i found that there are no castle nuts or cotter pins anywhere. the only thing that i found was a thin metal washer the same diameter of the bearing and the nut. is this correct or do i have to worry about the nut coming off
asked by: GARY
Expert Reply:
If you only have the nut and a washer but no cotter pin or retaining type washer on the end then that isn't correct and you want to get a piece to help prevent that nut from backing off. If you have a setup like the Spindle Nut Kit for EZ Lube Axles # RG05-100 with the weird looking washer on the outside then that is okay because the weird washer is designed to help keep the nut in place.
Let me know if you're needing something to secure it and I can help you with the correct part if you can let me know what diameter spindle you have.
Wayne
4/23/2025
Castle nut has a pin but it's not a cotter pin,how do I get it out
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Spindle Nut Kit for EZ Lube Axles
- Accessories and Parts
- Trailer Spindles
- Spindle Nut
- 1 Inch I.D.
- Redline
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J T.
3/21/2024
Spindle size 1-1/16