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RK Stupid Question

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Old May 3, 2014 | 03:45 PM
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Default RK Stupid Question

Hey guys. Just had a 3.5 x factor installed this week and I had a stupid question. my question was about the nuts on the control arms and track bars. Do they need to be tight? I drove it a couple hundred miles and it seems fine and nothing has moved but I just wasn't sure if I needed to get under there and tighten them up in the morning or not?
Thanks guys,
Ray
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Old May 3, 2014 | 03:58 PM
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Originally Posted by HookEmHorns
Hey guys. Just had a 3.5 x factor installed this week and I had a stupid question. my question was about the nuts on the control arms and track bars. Do they need to be tight? I drove it a couple hundred miles and it seems fine and nothing has moved but I just wasn't sure if I needed to get under there and tighten them up in the morning or not? Thanks guys, Ray
what nuts are you talking about? If it's The locking/jam nuts they need to be very tight. I torqued them down as much as I could. You don't want them coming loose. I think the RK instructions say 200+ ft pounds

Last edited by 12JKjeep; May 3, 2014 at 04:36 PM.
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Old May 3, 2014 | 04:19 PM
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Yes, it is extremely important that those nuts are tight!!

Did you pay a shop to install the kit??
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Old May 3, 2014 | 04:25 PM
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yup like they said jam nuts as tight as possible you dont want them to come loose and stay that way for long
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Old May 3, 2014 | 05:19 PM
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I'll get a picture real quick if you can see it in the dark...
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Old May 3, 2014 | 05:24 PM
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These are the ones that are loose enough to unscrew by hand. But I can't tighten them down without rotating the entire arm/joint.
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Old May 3, 2014 | 05:31 PM
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Yeah those are the jam nuts. They must be torqued....not finger tight!!

Who installed this kit??


From the Rock Krawler install manual....

IMPORTANCE OF JAM NUTS

This is a note about jam nuts and the consumer's responsibility. The installer is the person or
persons initially responsible for the proper setup of the suspension system and/or components and
the initial tightening of the jam nuts. The jam nuts not only hold the orientation of the joint it is on
but it is the single component that puts the necessary pre-load on the joints threads. The consumer
or vehicle owner is the person or persons responsible for maintaining the jam nuts tightness.
Failure to do so will result in the rapid deterioration of the threads in the control arm and will
impose a "cause for concern" for the occupants of the vehicle. Failure to comply with the warnings
headed in the directions regarding the amount of threads showing past the jam nut will also result
in the same "cause for concern" for the occupants of the vehicle. All of the above items are the
responsibility of the vehicle owner and or installer. If a threaded section of a component is bad it
will show itself defective immediately. Threads that fail over time are due to improper maintenance
of jam nuts and can be proven very easily. Thread sections and jam nuts not properly maintained
or setup, are not covered under warranty. This is the end user and installer's responsibility.


TORQUE VALUES FOR HARDWARE AND JAM NUTS

 All 14mm and 9/16” bolts are torqued to 90-100 ft-lbs.
 All 12mm and ½” bolts are torqued to 75-80 ft-lbs.
 All 10mm and 3/8 bolts are torqued to 30-35 ft-lbs.
 All 7/8” Jam Nuts are to be torqued 200-220 ft-lbs. Up to ½” of threads showing past the jam nut is safe for
final adjustment. These specifications are critical for the overall longevity of the threaded section.
 All 1” Jam Nuts are to be torqued to 250-300 ft-lbs. GET YOUR BIG BOY PANTS ON! Up to 5/8” of
threads showing past the jam nut is safe for final adjustment. These specifications are critical for the overall
longevity of the threaded section
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Old May 3, 2014 | 05:31 PM
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Originally Posted by OH9JK
Yes, it is extremely important that those nuts are tight!!

Did you pay a shop to install the kit??
Yes I did pay a shop to install it. They're not open on weekends though so I'm going to have to tighten them myself if I can do that without messing up the alignment of the heim joints
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Old May 3, 2014 | 05:33 PM
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Originally Posted by HookEmHorns
These are the ones that are loose enough to unscrew by hand. But I can't tighten them down without rotating the entire arm/joint.
If its installed then how is it still spinning when you are trying to tighten it? Turning the jam nut wont turn the joint im confused
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Old May 3, 2014 | 05:34 PM
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Awesome. How do you really torque those though? I'm not sure I understand how to do that with a regular torque wrench... sorry if I am a total newbie but I really know nothing once it gets past normal factory type suspension parts
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