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Torque specs for a lower ball joint needed

Tiny
YOI55
  • MEMBER
  • 2007 HYUNDAI TUCSON
  • 2.0L
  • 4 CYL
  • 4WD
  • MANUAL
  • 165,000 MILES
I am looking for the torque specs for a castle nut on a front lower ball joint. I can find the specs for the two that bolt to the knuckle, but not for the one that bolts to the lower control arm.
Wednesday, March 16th, 2022 AT 10:46 AM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,205 POSTS
Hi,

For some reason, my manual doesn't provide those specifications either. However, if you tighten it to approximately 90 ft/lbs and use a castle nut with a cotter pin, it should be fine. The cotter pin will prevent it from coming loose.

Let me know if that helps or if you have other questions.

Take care,

Joe
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Wednesday, March 16th, 2022 AT 4:39 PM
Tiny
DONATING DAVER
  • MEMBER
  • 2 POSTS
I'm wondering as well. I applied anti seize to the bolts, so I would like to know the lubricated torque specs.
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Wednesday, July 12th, 2023 AT 6:07 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,205 POSTS
Hi,

Yes, that would still be the same. The anti-seize will just help prevent corrosion. The torque is the same.

Take care,

Joe
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Thursday, July 13th, 2023 AT 11:36 AM
Tiny
DONATING DAVER
  • MEMBER
  • 2 POSTS
According to what I have been reading, anti-seize does change the torsion-tension relationship of a fastener system, torque settings need to be recalculated. The Fastenal people say that even the oil from one's hands after eating potato chips will have an effect upon torque specs, so I am thinking that anti-seize will also.
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Friday, July 14th, 2023 AT 1:19 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,205 POSTS
Hi,

I never heard of that. Not saying it isn't possible, but a given ft/lb doesn't change. I haven't ever seen anything related to this in any manual or in 30+ years of working on vehicles.

Also, if you have a castle nut, I suspect there is a cotter pin that pushes through the top of the nut. That cotter pin prevents the nut from turning.

Let me know.

Joe
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Friday, July 14th, 2023 AT 8:02 PM

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