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Whats the proper lug nut torque for my dually?

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Old 11-12-2007 | 09:25 PM
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dieselfuelonly's Avatar
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From: Chapel Hill, NC
Whats the proper lug nut torque for my dually?

When I got the new tires put on, the guy tightened them down to around 125 ft/lbs I think. I've searched on the forum and seen some crazy numbers like 325 lbs. How tight should they be? These are on the stock rims.

And if 125ft/lbs. is close to what it should be, is that safe, or should it be EXACTLY what the rating is? I don't have a really good torque wrench so I would have to have someone else do it. I've just got one of the crappy ones that has the little dial that you have to look at while tightening.

Also, should I re-check them after the first hundred miles or so on these new tires (though I'm probably close to 100 miles already).
Old 11-12-2007 | 10:36 PM
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From: Airdrie, Alberta
140 is the spec. I never use a torque wrench on mine, just use a breaker bar for putting them on and taking them off. They just need to be tight enough that they won't loosen off, but not so tight that you can get them off yourself if you're on the side of the road. Lean on the breaker bar, and you'll be past the 140 spec. Don't need to jump on it by any means.
Old 11-13-2007 | 11:24 AM
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From: Montana
140 ft/lbs.
I use a torque stick on an impact wrench. Highly accurate, I've checked with a torque wrench, always within a couple lbs of the target.
More info http://buy1.snapon.com/catalog/item....re&dir=catalog
Old 11-13-2007 | 02:05 PM
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From: Manhattan, KS
Say yeah deffinitely 140. Easy way to remember is most vehicles roughly increase 20 ft/lbs. per lugnut. Say if it's a little foreign car with 4 lugs, most are either 60-80 max depending on the size of the nuts. Most 5 lugs are 80-100. 6 lug on chevy 1/2 and 3/4 tons is 120, then the 7 and 8 lugs should be 120-140. No need to go any higher, just make sure the check them after about 100 miles or so once the wheel settles against the hub. It all depends on what size of lug nuts and threads mainly. It's always best to look in the owners manual or a shop manual for correct specs, but this is a pretty good way to estimate if you don't know.
Old 11-13-2007 | 09:54 PM
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From: Northern Cal
Most of the wheels I have worked on the (1 ton and 3/4) the lug nuts are marked 140.
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