Prevailing torque / Stover locknut vs Nylon insert

[EastMT]

The rear upper shock mount bolts have nylon locknuts while the trailing arm shock mount bolts have prevailing torque / Stover lock nuts on my sandcar. Is there any reason that one was used instead of the other for the upper or lower shock mounts? 

 

[Sandkist]

Stover is better choice where heat is a concern. Other than that really no reason to use different nuts top and bottom.

 

[KLC]

Nylocks are fine for shock bolts. 

 

[lincster]

I prefer Stover.

Nylon deforms more when you use it, i.e. might not give same clamping load the 2nd, 3rd, 4th etc time you use it.

I have had better luck with reusing Stover nuts.

For 1 time use, doesn't matter.

Stover are also "shorter", if space is an issue for whatever application.

 

[ChasingSand]

I use Nylocks for all my shock bolts. never had one come loose and they are super cheap at Mcfadden so I always buy a couple of spares so I am never reusing them.

 

[Rockwood]

The rear upper shock mount bolts have nylon locknuts while the trailing arm shock mount bolts have prevailing torque / Stover lock nuts on my sandcar. Is there any reason that one was used instead of the other for the upper or lower shock mounts? 

Double shear both sides?

 

[parker@gearone]

Anything that can lead to a catastrophic failure if it comes loose stover nut & red Loctite for me. 

 

[Rockwood]

Anything that can lead to a catastrophic failure if it comes loose stover nut & red Loctite for me. 

And some activator if the bolts are coated/going into aluminum.

https://www.henkel-adhesives.com/dk/en/applications/all-applications/case-studies/when-to-use-loctite-activator-with-your-loctite-threadlocker.html#:~:text=However%2C there's also the other,black oxide%2C magnetite steel%2C Iconel

That being said, Loctite alone is generally plenty.  :biggrin:

 

[EastMT]

Double shear both sides?

Both upper and lower are double shear. 

 

[EastMT]

Thanks guys! Appreciate all the info and advise.

 

[EastMT]

And some activator if the bolts are coated/going into aluminum.

https://www.henkel-adhesives.com/dk/en/applications/all-applications/case-studies/when-to-use-loctite-activator-with-your-loctite-threadlocker.html#:~:text=However%2C there's also the other,black oxide%2C magnetite steel%2C Iconel

That being said, Loctite alone is generally plenty.  :biggrin:

How about cameltoe harris blue loctite? Will that loosen up over time?

 

[Rockwood]

Both upper and lower are double shear. 

Either will be more than sufficient.  There isn't much rotational force exerted on the fastener, so you're mainly trying to keep the force imparted from the spherical from loosening the nut when the mount flexes (not super often, in other words).  If you never nut/bolt the car, go overkill and stover/loctite it.  One thing to note: always inspect the threads after using a stover since there is the potential for galling, especially if there's dust in the threads.

How about cameltoe harris blue loctite? Will that loosen up over time?

Cameltoe Harris is loose as a TJ hooker...

But she never lets go.  Ever. :biggrin:

 

[Sandkist]

You could just use a quality bolt and nut and torque to spec. Bolt stretch/clamping force will keep it tight.

 

[Rockwood]

You could just use a quality bolt and nut and torque to spec. Bolt stretch/clamping force will keep it tight.

Agree.  Only time it's a problem is single shear on a bolt that sees CCW twisting (driver's side upper shock bolt).  

 

[HydroPower]

Thanks guys! Appreciate all the info and advise.

I prefer the stover nut , also make sure that the bolts are properly shanked as well