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Re: [GMCnet] OEM vs Alcoa lug nuts [message #265864 is a reply to message #265859] Tue, 11 November 2014 15:08 Go to previous messageGo to previous message
sgltrac is currently offline  sgltrac   United States
Messages: 2797
Registered: April 2011
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It's for Bob.

Todd Sullivan

Sully
77 royale
Seattle

> On Nov 11, 2014, at 12:04 PM, "Robert Mueller" wrote:
>
> Sully,
>
> If this question is for me my response is HUH?
>
> Regards,
> Rob M.
> Sydney, Australia
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
>
> -----Original Message-----
> From: Gmclist [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Todd Sullivan
> Sent: Wednesday, November 12, 2014 6:35 AM
> To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] OEM vs Alcoa lug nuts
>
> Coined or coned?
>
> Todd Sullivan
>
> Sully
> 77 royale
> Seattle
>
>> On Nov 10, 2014, at 6:39 PM, Bob de Kruyff wrote:
>>
>> USAussie wrote on Mon, 10 November 2014 14:48
>>> Randy,
>>>
>>> The 9/16' x 18 TPI is the correct size and thread pitch, however, the spec says the NAPA nut is 1" high and if you look closely
> at
>>> the washer you will see it is conical in shape.
>>>
>>> Below you will find a photo of an OEM Alcoa lug nut and the washer is not conical:
>>>
>>> http://www.southwestwheel.com/store/p-1807-139987.aspx
>>>
>>> And the overall height of the nut is not that high.
>>>
>>> As you can see from this photo when you install Alcoa wheels on the OEM wheel studs the studs do not go all the way through the
>>> nuts:
>>>
>>> http://www.gmcmhphotos.com/photos/for-sale-by-owner/p29996-lug-nut-caps-for-sale-or-trade.html
>>>
>>> History has shown that's not a problem, however, installing taller lug nuts would reduce the amount of thread engagement further.
>>>
>>> Bottom line: buy OEM Alcoa lug nuts if you install Alcoa wheels.
>>>
>>> Regards,
>>> Rob M.
>>> Sydney, Australia
>>> AUS '75 Avion - The Blue Streak TZE365V100428
>>> USA '75 Avion - Double Trouble TZE365V100426
>>>
>>> -----Original Message-----
>>> From: Gmclist [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Randy Meek
>>> Sent: Tuesday, November 11, 2014 7:32 AM
>>> To: gmclist@temp.gmcnet.org
>>> Subject: Re: [GMCnet] OEM vs Alcoa lug nuts
>>>
>>> Would this be the correct lug nut for Alcoa wheels?
>>> http://www.napaonline.com/Catalog/CatalogItemDetail.aspx/Wheel-Bolt-Nut-9-16-18/_/R-NDP6412029_0437519255
>>>
>>> Randy
>>> _______________________________________________
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>>
>> You have to look at the back side of the washer--is it flat, or is the washer recessed and designed to fit over a coined surface.
> I think most of you
>> are playing with fire. These are "engineered" joints that are not designed to be mixed and matched.
>> --
>> Bob de Kruyff
>> 78 Eleganza
>> Chandler, AZ
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Sully 77 Royale basket case. Future motorhome land speed record holder(bucket list) Seattle, Wa.

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