What is the torque specs for the lug nuts? - Diesel Forum - TheDieselStop.com
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1999-2007 General Questions General questions related to 1999-2007 Super Duty trucks. If it doesn't fit the other categories, post it here. Gas engine discussion that pertains to all models is allowed. Specific gas engine questions should use the Gas Engines forum.

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Old 07-19-2006, 06:47 AM   #1 (permalink)
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What is the torque specs for the lug nuts?

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Old 07-19-2006, 06:51 AM   #2 (permalink)
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Re: What is the torque specs for the lug nuts?

165 ft lbs.
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Old 07-19-2006, 07:32 AM   #3 (permalink)
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Re: What is the torque specs for the lug nuts?

Sam -- On mine, its 150 ft lbs. The torque specs are actually stamped on the lug nuts.
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Old 07-19-2006, 08:14 AM   #4 (permalink)
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Re: What is the torque specs for the lug nuts?

Ford sent out a notice to the original owners that the spec had been increased from 150 to 165 ft lbs. My truck came with the 150 ft lbs in the manual but was upgraded with a notice to put in the manual that the new spec was 165.
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Old 07-19-2006, 08:24 AM   #5 (permalink)
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Re: What is the torque specs for the lug nuts?

Interesting. I have received no such notice from Ford for my truck. Given that yours is a 2002 and mine is a 2005, I wonder what Sam's proper torque spec should be as his is a 2004. Maybe his best bet would be to call a Ford dealer and ask about his particular truck.
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Old 07-19-2006, 08:38 AM   #6 (permalink)
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Re: What is the torque specs for the lug nuts?

Yeah, my manual has that page edited. There is a sticker covering that page that completely replaced it. I noticed it right away because the page was so much thicker.
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Old 07-19-2006, 09:17 AM   #7 (permalink)
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Re: What is the torque specs for the lug nuts?

[ QUOTE ]
04/04 F350

[/ QUOTE ]

Yep. 165 lb/ft for the lugnuts on all '99-up PSDs, including the new ones.

For example, here's the specs in the workshop manual for an '05.

<font class="small">Code:</font><hr /><pre>
2005 F-Super Duty 250-550 Workshop Manual
SECTION 204-04: Wheels and Tires
SPECIFICATIONS Procedure revision date: 07/02/2004
--------------------------------------------------------------------------------

Torque Specifications
Description Nm lb-ft

Spare tire carrier bolts 20 15
8-Lug M14 wheel bolts F250/350 224 165
10-Lug M14 wheel bolts F450/550 224 165
</pre><hr />
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Old 07-19-2006, 09:24 AM   #8 (permalink)
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Re: What is the torque specs for the lug nuts?

I just had my front wheels off last Saturday. I looked up the torque specs in my owners manual and it said 150-165. I never received any notice that it had to be 165, nor is there any sticker saying anything different....... [img]/ubbthreads/images/graemlins/shrug.gif[/img]
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Old 07-19-2006, 09:32 AM   #9 (permalink)
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Re: What is the torque specs for the lug nuts?

[ QUOTE ]
I looked up the torque specs in my owners manual and it said 150-165.

[/ QUOTE ]

Here's the current specs from the workshop manual for your 2003:

<font class="small">Code:</font><hr /><pre>
2003 F-Super Duty 250-550/Excursion Workshop Manual
204-04: Wheels and Tires
SPECIFICATIONS Procedure revision date: 08/27/2003
--------------------------------------------------------------------------------

Torque Specifications
Description Nm lb-ft

Spare tire carrier bolts 20 15
8-Lug M14 wheel bolts 224 165
</pre><hr />

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Old 07-20-2006, 12:38 AM   #10 (permalink)
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Re: What is the torque specs for the lug nuts?

What would the spec be for aftermarket wheels using tapered seat lugnuts?
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Old 07-20-2006, 02:20 AM   #11 (permalink)
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Re: What is the torque specs for the lug nuts?

Check with the wheel manufacturer.... Just a very few months ago I had one with tapered seat lug nuts and an instruction sheet from the wheel manufacturer stating 80 ftlb. Not my cup of tea but, with a photocopy of the instruction sheet stapled to the hard copy, the wheels got 80 ft/lb. The ball, if needed, is in the wheel manufacturers court...

At the same time, I recall another 250 with aftermarket wheels and tapered seat nuts that kept coming loose..... the nuts weren't deep enough to fully seat in the wheels and bottomed on the ends of the studs at just the wrong spot.

Caveate emptor....
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Old 07-20-2006, 04:03 AM   #12 (permalink)
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Re: What is the torque specs for the lug nuts?

Don't the instructions read "put a small drop of oil on the lug nut where it rotates on the washer and then torque to 165 ft lbs"??
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Old 07-20-2006, 07:07 AM   #13 (permalink)
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Re: What is the torque specs for the lug nuts?

Thanks everyone.
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