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sun visor 58

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Old Oct 31, 2017 | 09:14 PM
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Default sun visor 58

I know the 58 did not come with or offer a sun visor option. But why does my 58 upper windshield rail have these pre-punched holes, one on each side and 2 off center.?

Were there late production 58's that may have had a 59 upper windshield rail? If so, presumably 59 visors could be mounted??

Were they for something else?

Is it possible to retro-fit a 59 visor to these holes on my 58?

See photos. I do not know why the forum FLIPS the photos. I loaded the 1st right-side-up, and they display up-side-down. I then flipped the photos on my computer and re-uploaded them, only to STILL be up-side-down. Please turn your monitor over or stand on your head to view them.

thanks
ED G
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Old Oct 31, 2017 | 09:34 PM
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Are there receivers for a screw in the hole - or just holes in the outer cover? Unless you're the original owner, it's possible that the trim piece/windshield frame has been replaced during the last 60 years.

Last edited by desertpilgrim; Oct 31, 2017 at 09:34 PM.
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Old Oct 31, 2017 | 09:43 PM
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Default sun visor 58

would like to know if ANYONE ELSE with a 58 has these holes in the upper rail?
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Old Oct 31, 2017 | 09:53 PM
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Originally Posted by egerson
would like to know if ANYONE ELSE with a 58 has these holes in the upper rail?
I've owned my '58 since 1961 so I know it is original. It doesn't have holes for the visors.
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Old Oct 31, 2017 | 10:00 PM
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Originally Posted by gingcars
I've owned my '58 since 1961 so I know it is original. It doesn't have holes for the visors.
I am NOT SURE these hole ARE MEANT for a visor, so just would like to know if your 58 has these same extra holes in the upper windshield rail, or NOT. If not, then perhaps my upper rail is a post-58 replacement and , if so, it might allow me to add visors.
thanks
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Old Oct 31, 2017 | 10:26 PM
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Originally Posted by egerson
I am NOT SURE these hole ARE MEANT for a visor, so just would like to know if your 58 has these same extra holes in the upper windshield rail, or NOT. If not, then perhaps my upper rail is a post-58 replacement and , if so, it might allow me to add visors.
thanks
i just found a NOTE in the Corvette Central catalog that says "there were no mounting holes in the windshield frame till 1959."
so my upper frame rail has to be a later replacement.
thanks to all.
ED G
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Old Oct 31, 2017 | 11:41 PM
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FWIW, I had a mid production VIN '58 that was purchased by the prior owner from the original owner in 1964. It had no holes.
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Old Nov 1, 2017 | 12:09 AM
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Originally Posted by egerson
I am NOT SURE these hole ARE MEANT for a visor, so just would like to know if your 58 has these same extra holes in the upper windshield rail, or NOT. If not, then perhaps my upper rail is a post-58 replacement and , if so, it might allow me to add visors.
thanks
If it doesn’t have the threaded nutplate behind the hole your visor will never hold.
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Old Nov 1, 2017 | 07:14 AM
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Originally Posted by 59BlueSilver
If it doesn’t have the threaded nutplate behind the hole your visor will never hold.
That's the real problem....if somebody just threaded a hole through the thin metal you'll never get visors to hold...they were made standard in '61.

If you load pictures into the free Paint program on windows...click on "Resize" and select 40 or thereabouts and save the pics they will upload correctly.
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Old Dec 19, 2017 | 07:14 PM
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Default They said it couldn't be done

With the HOLES for a visor in the upper windshield rail in my 58, and the sun sometimes a problem in the convertible, I was determined to at least try to retro-fit 59 visors. I found the correct blue color at Al Knoch (http://www.alknochinteriors.com/) and ordered them despite what the comments here warned about.

I was able to tap the dimpled holes with a 8-32 tap and got 8-32 oval head chrome machine screws. 3/4" was the shortest I could find and since that size seemed to hit resistance before bottoming out. I cut about 1/4" off each. I slightly tapered the screw ends with a bench grinder to help get them started. They seem to fit perfectly, and tighten down really firmly.

I accept the fate that they may loosen with time, but for now, I am happy with the results and looks. SEE PHOTOS

Ed G
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Old Dec 19, 2017 | 08:52 PM
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GOOD FOR YOU!!!!!!! Enjoy!
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Old Dec 19, 2017 | 09:01 PM
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Looks great! I have visors on my '58 and when I see one without them it looks like something
is missing. I found the screws would loosen after raising/lowering the visors over time. But, I added a dab of loctite to the threads and now everything stays tight.
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Old Dec 19, 2017 | 09:05 PM
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Originally Posted by egerson
With the HOLES for a visor in the upper windshield rail in my 58, and the sun sometimes a problem in the convertible, I was determined to at least try to retro-fit 59 visors. I found the correct blue color at Al Knoch (http://www.alknochinteriors.com/) and ordered them despite what the comments here warned about.

I was able to tap the dimpled holes with a 8-32 tap and got 8-32 oval head chrome machine screws. 3/4" was the shortest I could find and since that size seemed to hit resistance before bottoming out. I cut about 1/4" off each. I slightly tapered the screw ends with a bench grinder to help get them started. They seem to fit perfectly, and tighten down really firmly.

I accept the fate that they may loosen with time, but for now, I am happy with the results and looks. SEE PHOTOS

Ed G
I probably would have looked for a hardware store plastic screw anchor, cut it off and planted it in the hole to help hold the screws.
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