lug nut torque spec... - JeepForum.com
 
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post #1 of 14 Old 05-01-2007, 05:51 AM Thread Starter
matr8er
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lug nut torque spec...

In the manual they state to use 85-110 foot pounds of torque on the lug nuts. I would like to know what it should be, or what the experts say it should be. 85-110 still leaves a lot of guess work. I know it is pretty important to get the torque right, but what does a wrong torque cause? I got new McGard lugs and torqued them to 102 foot pounds. within the specs. Any info would be helpful. Thanks!!!

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post #2 of 14 Old 05-01-2007, 06:15 AM
festerw
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I usually do 100-105 on all my vehicles.

Hers - 2005 Jeep Grand Cherokee Laredo 3.7 4x4
Mine - 2003 Jeep Wrangler X
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post #3 of 14 Old 05-04-2007, 05:19 PM
Flynjp
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Incorrect torque (too much) can warp brake rotors and screw up aluminum rims. I set my torque wrench to 100 ft/lbs.
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post #4 of 14 Old 05-04-2007, 09:00 PM
jeepjeepster
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100ft lbs..
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post #5 of 14 Old 05-06-2007, 08:26 AM
JJsKJ
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I also go w/ 100 ft lbs on a good quality torque wrench.

1999 TJ
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post #6 of 14 Old 05-08-2007, 09:41 AM
indianrefining
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Quote:
Originally Posted by matr8er
In the manual they state to use 85-110 foot pounds of torque on the lug nuts. I would like to know what it should be, or what the experts say it should be. 85-110 still leaves a lot of guess work. I know it is pretty important to get the torque right, but what does a wrong torque cause? I got new McGard lugs and torqued them to 102 foot pounds. within the specs. Any info would be helpful. Thanks!!!
The "85-110" in your manual is what is known as a "compound torque". It does not mean "somewhere between 85 and 110 foot pounds". It means that you are supposed to first torque all 5 lugs (in the proper sequence) to 85 foot pounds and, then, re-torque them to 110 foot pounds. This is pretty much standard procedure with composite rims. It allows for a more gradual tightening in order to obviate fracturing the rims.
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post #7 of 14 Old 02-10-2013, 02:14 PM
2Jeeps1Cup
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2008 JGC user manual, page 391, "Correct wheel nut tightness is 95 ft-lbs (130 N-m.)

Just thought I'd toss that one out there for anyone who needs it!

cheers
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post #8 of 14 Old 02-10-2013, 05:31 PM
tjkj2002
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Quote:
Originally Posted by 2Jeeps1Cup View Post
2008 JGC user manual, page 391, "Correct wheel nut tightness is 95 ft-lbs (130 N-m.)

Just thought I'd toss that one out there for anyone who needs it!

cheers
To bad this is not the Grand Cherokee section and it's 85-115lbs-ft for a KJ.

'02 Liberty sitting on 35" tires,HP44,RockJock60,and AtlasII t-case
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post #9 of 14 Old 02-10-2013, 05:59 PM
01CHEEKEE
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I turn the 4 way til I can't turn it anymore, same way it's been done for like 70 years or so
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post #10 of 14 Old 02-10-2013, 08:12 PM
tjkj2002
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Quote:
Originally Posted by 01CHEEKEE View Post
I turn the 4 way til I can't turn it anymore, same way it's been done for like 70 years or so
That's a sure way of stretching the wheel studs.

Torque wrenches have been around just as long as lug nuts.

'02 Liberty sitting on 35" tires,HP44,RockJock60,and AtlasII t-case
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post #11 of 14 Old 05-01-2014, 06:33 AM
maralin49
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torque settings

Hello all, Can anyone tell me the torque settings for the bolts on the rear suspension i.e. upper and lower control arms, toe link bars, toe link stabilising bars, struts.
Any help would be invaluable.

Thanks
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post #12 of 14 Old 05-01-2014, 02:21 PM
remmons
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Plus keep in mind, when you tighten them to spec you really should practice the every other wheel stud method, i.e. #1, #3, #5, #2, and then #4 (in a star-like pattern). This also prevents mistorque, and the possibility of cracked rims.

Robert.

2015 Cherokee Trailhawk V6.
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post #13 of 14 Old 05-01-2014, 03:17 PM
AVR2
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I know this is an ancient thread, but indianrefining's comment about the lug nuts requiring a "compound torque" doesn't square with anything I've ever read in a FSM.

If you're supposed to torque to one figure, and then another, the FSM will always say so, clearly stating "Step 1 torque", "Step 2 torque" and so on. It doesn't do this for the lug nuts, and it doesn't specify a nut tightening sequence either.

I've always just picked about 100 ft lbs, and tightened in a star pattern, starting wherever I feel like. Never had a problem.
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post #14 of 14 Old 05-01-2014, 08:17 PM
95BadBoy
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Yah, that's pretty close to how I set mine. I know I'm old fashion, but I still don't air gun mine either (ever) to take off the lugs. Plain old torque wrench does the job just fine putting 'em back on. Never had any issues, never broke a stud.

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05 KJ CRD 545RFE, GDE Eco tune, Franky II, Al's 4.5 A-arms, JK Rubi Moabs, Silent Armors 245-70-17's, Spidertrax Adapters, Rola Basket, Fumoto Valve, Pinch welds pounded - Sold 2015
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