[1oldgoat]

How do you decode the dates on glass? I need a replacement for my 71 GTO driver side rear window and want to match the date as close as possible. Any help would be appreciated.

[johnta1]

Here's what I have:

Glass Dating:

AS1 - Windshield Glass
AS-2 - All other glass
EZI - Soft-Ray Tinted
LOF - Libby, Owen, Ford

Safety-Plate = Original
Safety-Float = Replacement

Date code should appear after "LAMINATED" as 2 letters, MY

Month codes
N - Jan
X - Feb
L - Mar
G - Apr
J - May
I - June
U - July
T - Aug
A - Sept
Y - Oct
C - Nov
V - Dec

Years
A - 1953,1966,1979
Z - 1954,1967,1980
X - 1955,1968,1981
V - 1956,1969,1982
T - 1957,1970,1983
N - 1958,1971,
Y - 1959,1972
U - 1960,1973
L - 1961,1974
I - 1962,1975
C - 1963,1976
G - 1964,1977
J - 1965.1978

Mike (HFR) probably has a better description.

[1oldgoat]

Thanks John! That helps.

[johnta1]

A pic of the glass:

[johnta1]

PPG Glass:

[1oldgoat]

Thank you for the great info! That's exactly what I need.

[71 lemans sport 455]

Hey John was PPG and LOF the only 2 factory company's to make rear heated glass. I'm looking at a rear heated glass out of a 70 Lemans Sport and it says DCI or DCL was wondering if it was factory or aftermarket replacement. Cant find any info on that glass

Soft Ray
SAFETY DCI FLO-LITE
AS-2 AL69
SOLID TEMPERED
HEATED
DOT-19 M-16.1

Thanks Chris

[johnta1]

Not sure on this one, without looking it up.

But I'd say the date code may be Sept 1974 or possibly June 1979.
But I'd say a replacement.

Pretty sure 1970 would still be LOF or PPG.



Have a pic of the codes?

[johnta1]

Pic of Chris' glass code:



I'd say probably Sept 1974 date.

Might be able to find when the DOT-19 went into effect?

[71 lemans sport 455]

Thanks for posting the picture John

[johnta1]

Found this on the DOT-19

DOT19 PPG CANADA INC.,DUPLATE DIVISION OSHAWA,ONTARIO, CANADA

May be factory replacement, but not sure of the date.
Pretty sure it's not 1970, though.

Is the car built at Oshawa?

[71 lemans sport 455]

Not sure if it was a Canadian built car. It was taken apart a while ago in Ohio. Not that means anything. Car was a very well optioned 70 lemans sport. That's all we know unfortunately

[Pepper Judge]

My 70 Oshawa built Judge from late October 1969 with A02 has the following on the original windshield

SHADED
SOFT-RAY
L
SAFETY O FLO-LITE
F
AS1 YV-C

LAMINATED
ANTENNA
DOT-15 M26


Not certain about the rear glass right now other than it has the rear window, electric defogger option

[johnta1]

The glass date is Oct 1969

[Held for Ransom]

http://www.forums.maxperformanceinc....d.php?t=495390

And, the heated glass is dated '69 (probably Dec.).

[johnta1]

Thanks, Mike!



Sorry I led Chris astray.




I'll have to add that to my info.

[71 lemans sport 455]

Thanks everyone for clearing this up for me on the Canadian glass. Ok now next question. LOL. Is a July 69 date coded rear heated back glass to early for a first week of April 70 GTO. Car was built in the Pontiac plant

[71 lemans sport 455]

This one is a LOF rear window with a UV date code

[Pepper Judge]

Originally Posted by Pepper Judge

My 70 Oshawa built Judge from late October 1969 with A02 has the following on the original windshield

SHADED
SOFT-RAY

LOF
SAFETY FLO-LITE

AS1 YV-C

LAMINATED
ANTENNA
DOT-15 M26

Hi Chad,

Here are a couple of pictures, as seen and a mirror image.