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post #1 of 16 (permalink) Old 05-19-2019, 07:04 PM Thread Starter
mg2
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Any idea where this goes

Had the Roadster out and as I stopped I saw this nut come out from underneath the car. I didn’t think much of it until I saw the yellow paint on it as I marked all the bolts as I tightened them. It looks like about a 3/4-20 ? Jacked the car up removed the wheels and all the suspension bolts and nut are still there. Where else would a nut that size be used on the car?

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post #2 of 16 (permalink) Old 05-19-2019, 09:06 PM
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Doesn't look like anything I have seen on a Cobra. If it was a Nyloc, I would say upper control arms.
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post #3 of 16 (permalink) Old 05-19-2019, 09:31 PM
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With the attached washer it looks like an old style Ford axle nut from an IRS rear but too small.

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post #4 of 16 (permalink) Old 05-19-2019, 09:33 PM Thread Starter
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As big as it is I thought suspension. Maybe it’s off someone’s else’s car that used a yellow paint marker too. ????

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post #5 of 16 (permalink) Old 05-19-2019, 09:56 PM
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Motor mount to frame?

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post #6 of 16 (permalink) Old 05-19-2019, 10:05 PM Thread Starter
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Just confirmed it’s 5/8-18 I checked the suspension twice, motor mounts to frame, trans mount. Just can’t think of any other place that would use a bolt that big. Starting to think isn’t off my car and someone else used a yellow paint marker to and I just hit it in the road ?? I will go over and mark each bolt again

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post #7 of 16 (permalink) Old 05-19-2019, 10:18 PM
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5/8 is frame mounting bolts for the front UCAs and most of the 3 link or 4 link rear suspension.

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post #8 of 16 (permalink) Old 05-19-2019, 11:44 PM
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The 3 link on my Coupe lost a nut in the past. when I dug into it, it was a nylock, and the bolt was just barely too short for the nut to lock onto the bolt.
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post #9 of 16 (permalink) Old 05-21-2019, 06:18 PM
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Quote:
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5/8 is frame mounting bolts for the front UCAs and most of the 3 link or 4 link rear suspension.
That is what I was thinking. Also make sure that the UCA pivot nuts are there. Mine look a little different than that, but there have been a few different versions.

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post #10 of 16 (permalink) Old 05-23-2019, 10:36 PM Thread Starter
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Came to the conclusion it wasn’t off my car as I went over the suspension 3 times. What’s the odds I hit a nut in the road that someone painted with yellow paint as I did ?


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post #11 of 16 (permalink) Old 06-29-2019, 08:11 PM Thread Starter
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Well it was from my car and I was lucky. I decided to take the car out Thursday night as it started I heard a thunk under the hood and the motor sounded different. Upon inspection my gilmer belt came off, no big deal well as I tried to put the belt on the alternator pulley the pulley came off in my hand. I put 200 miles on the car after the nut came off , that would be one big pulley to come off at highway speeds. Pulley is trash but the alternator shaft looks good and is still round .668” dia.

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post #12 of 16 (permalink) Old 06-29-2019, 08:25 PM
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I have the greatest urge to take a box of left over build nuts, put a yellow paint line on them and sprinkle them up and down your street...….does that make me a bad person ...da Bat
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post #13 of 16 (permalink) Old 06-30-2019, 02:39 AM
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Quote:
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I have the greatest urge to take a box of left over build nuts, put a yellow paint line on them and sprinkle them up and down your street...….does that make me a bad person ...da Bat
I dare you.
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post #14 of 16 (permalink) Old 06-30-2019, 07:51 PM
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Was that a dare, or a "double dog dare" ??
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post #15 of 16 (permalink) Old 07-01-2019, 12:14 AM Thread Starter
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Only if you don’t stop for a beer ! Lol

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post #16 of 16 (permalink) Old 07-02-2019, 03:37 PM
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WAG here, could it be a weld on O2 sensor nut? Sorry reread the thread, misunderstood that the nut found a home.

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