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<div class="moz-cite-prefix">On 7/12/2017 9:47 AM, Yahoo via 6pack
wrote:<br>
</div>
<blockquote
cite="mid:1528347564.4500460.1499874457414@mail.yahoo.com"
type="cite">
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font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande,
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<div id="yui_3_16_0_ym19_1_1499874099311_4203" dir="ltr">80 ft
lbs is correct for TR6 disc wheels? I've seen a lesser
amount in some manuals if memory serves (most of the time!)</div>
<div id="yui_3_16_0_ym19_1_1499874099311_4203" dir="ltr"><br>
</div>
<div id="yui_3_16_0_ym19_1_1499874099311_4203" dir="ltr">Hope
you're having good driving where you are.</div>
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<br>
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</blockquote>
I think the confusion stems from a change in the strength of the
wheel stud. The factory TR4-4A manual specifies 45-55 lb-ft. The
factory TR6 manual specifies 80 lb-ft. Both studs, however, are
7/16 UNF (7/16-20). Generic torque charts show 80 lb-ft (dry) as
recommended for a grade 8 7/16-20 fastener, so I'm guessing that
earlier studs were ~ grade 6, while later studs are grade 8.
Something to remember if one is using boneyard front hubs from an
earlier TR4A.<br>
<br>
This, of course, would apply to stock lug nuts with disc wheels.
Probably best to use manufacturers' recommendations for non-stock
lug nuts and/or alloy wheels. Chromed lug nuts probably are treated
as if lubricated, so torque values of those would likely be a bit
lower.<br>
<br>
<br>
Cheers.<br>
<p><br>
</p>
<pre class="moz-signature" cols="72">--
Michael Porter
Roswell, NM
Never let anyone drive you crazy when you know it's within walking distance....</pre>
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