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93 ZR1 Windshield dates

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Old Aug 24, 2019 | 08:13 PM
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Default 93 ZR1 Windshield dates

I just went through NCRS and had points deducted for both windshield and back window..
BOTH were dated April 91 and the build date was 11/92, so it was outside the 12 month window.
Does anybody know when the ZR1 windshields were produced and when production ceased?
Engine production stopped n 1993 so perhaps window production dates ceased prior to 93 also?
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Old Aug 25, 2019 | 03:00 PM
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Glass date coding was done up through 95.

Do you have a wide or narrow cut out in the bottom since yours is an April 91 stamp?
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Old Aug 25, 2019 | 07:05 PM
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Thank you for the reply.
It is about 4 inches wide at the bottom, 3" at the top and about 3"tall.
Those are rough figures but will measure when I go to garage tomorrow.
Just seems strange that both were dated April of 1991......Car is very original with 8,500 miles on her.
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Old Aug 25, 2019 | 09:59 PM
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Post the codes from the 'bug' or maybe snapshot of the 'bug'. Years ago it was mentioned that #283 a 'Ruby' had a GJ date code which would be April '91 and it was thought very long runs of glass were done. I've never seen the rear vision discussed previously. Yours maybe confirms those thoughts. It would be interesting for maybe some random checks of later '92 and '93 cars to get confirmations.

*** Window size you mention seems correct for a '93. I found the original post for #283 ruby and his 'maybe' had the larger expected window size for a GJ date code It was never confirmed with snapshot and accurate dimensions.

I'm quite confident these are correct C4 date codes and there's a ZR-1 sample in the thread.

https://www.corvetteforum.com/forums...post1583238481

OP I believe yours is very likely NOT the only exception. Why? Who knows!

Last edited by WVZR-1; Aug 26, 2019 at 09:58 PM.
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