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Rear Axle Nut Size

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Old Apr 7, 2022 | 08:12 PM
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Default Rear Axle Nut Size

Seems like a lot of my posts lately have been about bolt and nut sizes that I can't locate and you guys have always been very helpful.

My current request is the rear axle nut on my '17 FXDB. According to the information on Suburban Harley, it's a 24mm and I can tell you for sure it is not. I took it to several local stores looking for a socket and the closest was a 1 7/16 but there was just enough play that I think it really is a metric nut. I am going to have to order a socket at this point but I need to know the size. Can anyone help? The sticky in this section says that it's a 36mm, can anyone confirm before I spend 20 bucks?
 
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Old Apr 7, 2022 | 08:24 PM
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If you have calipers you can measure it to be sure. It measures on the flats.
 
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Old Apr 7, 2022 | 08:54 PM
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24 mm is the thread diameter.

The wrench size you need is 36mm.
 
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Old Apr 7, 2022 | 09:22 PM
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Originally Posted by E-clip
If you have calipers you can measure it to be sure. It measures on the flats.
No calipers available.
Originally Posted by Dan89FLSTC
24 mm is the thread diameter.

The wrench size you need is 36mm.
Awesome, thanks much!
 
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Old Apr 9, 2022 | 12:33 PM
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Originally Posted by Dan89FLSTC
24 mm is the thread diameter.

The wrench size you need is 36mm.
Thanks for sharing this info, Dan!

Info added to the ***dyna models metric sizes database***

In general check out the images below to determine socket sizes...(info copied from rustyautos.com)



 

Last edited by FXD2003Rider; Apr 9, 2022 at 12:43 PM.
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Old Apr 9, 2022 | 11:31 PM
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To be honest I just use a large adjustable wrench on my rear axle nut. It doesn’t need to be ape **** tight to the point of worrying about rounding the nut with an adjustable.
 
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Old Apr 11, 2022 | 08:08 AM
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Originally Posted by 2500hdon37s
To be honest I just use a large adjustable wrench on my rear axle nut. It doesn’t need to be ape **** tight to the point of worrying about rounding the nut with an adjustable.
Yeah, that's how I got it off, reinstalling is a different issue. I try to stay away from "dad tight" on 99% of the fasteners and this is one that I wanted to be torqued to spec.
 
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Old Apr 11, 2022 | 08:09 AM
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Originally Posted by FXD2003Rider
Thanks for sharing this info, Dan!

Info added to the ***dyna models metric sizes database***

In general check out the images below to determine socket sizes...(info copied from rustyautos.com)

Huh, 55 years old, been wrenching since I was in diapers and I never knew about that fastener/socket size correlation. Thanks for posting that!
 
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Old Apr 11, 2022 | 12:04 PM
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Originally Posted by snake_eyes
Huh, 55 years old, been wrenching since I was in diapers and I never knew about that fastener/socket size correlation. Thanks for posting that!
There's one for socket head cap screws to....


 
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Old Apr 11, 2022 | 03:41 PM
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36 You can buy one at Ace hardware store, or any place that sell tools. Always use the right tool for the job. I think its 125lbs of tork.

 
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