Targa glass differences

[renaudtwingo 1969 911 2.0S Targa Find all posts View Profile Close renaudtwingo]

Hello,
I just joined that forum.
short intro, I’m finishing the restoration of 1969 911S Targa tangerine (newly declared with my 2.2E on that registry ?) and I’m having some issues with my targa glass: my car does not have any double defrost option on the kardex (+ the switch and the relay are 1 stage only), but my targa class is a double stage one. It was probably broken and replaced in its previous life. So I found a single stage defrost glass, but the seller is mentioning it is for G body and not a LWB. He states that the class are not the same…
I’m kind of surprised 1/ I thought G body targas only had double defrost system 2/ that there is a difference between F body and G body targa class…

Any information on that would be really appreciated.

ps: my glasses are tinted which makes it even more difficult !

[JP aka LiveFromNY Find all posts View Profile Close JP]

If I remember correctly,

nvr2mny

69E 3.2MFI

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nvr2mny dealt with this quandry at one point. Any help, Doug?

[nvr2mny 69E 3.2MFI Find all posts View Profile Close nvr2mny]

Ren-

Welcome to THE forum!

I too have a 69, E not S, Targa. I believe you are correct in your thinking that F body cars had single stage defrost and G then went to 2 stage. Our E has the original glass, and it is single stage. I don’t recall ever seeing single, or double stage for that matter, being called out on the Kardex. I’ll look at ours and report back. I do know very early Targa’s had vertical defrost elements as opposed to horizontal. Probably just the SWB cars. I can’t imagine ‘why’ there would be a difference in the actual glass. That makes no sense to me unless it has to do with the seals. But, it is Porsche, so who knows.

We’d love to see pics of your S btw!

We are weeks away, REALLY JP, from taking delivery of ours, after being in restoration for, oh, years!! I’ll post pics when in our hot little hands, and heavy right foot.

[nvr2mny 69E 3.2MFI Find all posts View Profile Close nvr2mny]

I stand corrected. Single stage IS listed, which leads me to believe that: A) It was ‘an’ option B) If not ordered that way it wouldn’t have been listed C) Not sure that a double stage was another option?? Maybe Eric can chime in here.

Not sure where your located Ren, (I’m in Kansas City) but I have a few rear windows in storage. I believe them to be all LWB pieces. Have to confirm if tinted and/or defrost.

[rubyred 2.0L Find all posts View Profile Close rubyred]

Interesting that it's on your Kardex. I'm going to have to look and see if it's on any of mine.

[JP aka LiveFromNY Find all posts View Profile Close JP]

Interesting that it's on your Kardex. I'm going to have to look and see if it's on any of mine.

Me too!

[JP aka LiveFromNY Find all posts View Profile Close JP]

I'be got a half-dozen G-bodies in my shop right now. I'm going to look at them tomorrow and see if any are single-stage.

[flatsixer aka rstarga Find all posts View Profile Close flatsixer]

My 73 is double stage, I am pretty sure that apart from single or double stage all the glass is the same. I think Jim Breazile confirmed that once on an old forum. He had quite a few pieces of real glass left over when he closed.

[renaudtwingo 1969 911 2.0S Targa Find all posts View Profile Close renaudtwingo]

I checked the different options list for each year:
No "heated rear window" mentions before 67
in 67:
9484 - Electrically heated rear windows
In 68:
9496 and 9512: Electrically heated rear windows tinted Targa
In 69:
9354 - Electric Heated tinted fixed rear windows Single stage for targa
9355 - Electric Heated tinted fixed rear windows Double stage for targa
In 70:
M568 - Tinted glass all around with 2stage heated rear windows Targa
in 71:
M477 - Tinted glass all around with 2stage heated rear windows Coupe
in 72:
M102 - Rear window tinted and 2 stage heated
in 73:
M102 - Heated rear window 2 stage

M102 is still present for the G/H/I/J bodies, but no mentions after (SC and 3.2...)

So for my 69, I do not have any option 9354 or 9355 on my Kardex, but I have a single stage on the car for sure!
So we cannot really trust the Kardex concerning the heated rear options, we can only state:
- the first heating option appeared in 67
- the 2 stage option appeared in 69
- G bodies may have received a single stage until the SC

As I found a single stage tinted rear targa glass from a G body, let me know if you think the size of the rear glass is different for a 69...

[flatsixer aka rstarga Find all posts View Profile Close flatsixer]

73 was standard heated rear window, doesn't say 2 stage but the one in mine was 2 stage.

[renaudtwingo 1969 911 2.0S Targa Find all posts View Profile Close renaudtwingo]

So in a nutshell, 2 stage was optional from 1969 and probably until SCs.
Any information about the difference of size between the Targa rear glass of a classic and a G body?

[JP aka LiveFromNY Find all posts View Profile Close JP]

Any information about the difference of size between the Targa rear glass of a classic and a G body?

I know the SWB/LWB rear glass differs in that SWB cars had laminated glass while LWB cars used tempered glass. Pretty sure Jim B. told me that. But I thought the shape was the same from SWB through G-body cars. Let me see if I can confirm.

[renaudtwingo 1969 911 2.0S Targa Find all posts View Profile Close renaudtwingo]

Thanks a lot JP!

[renaudtwingo 1969 911 2.0S Targa Find all posts View Profile Close renaudtwingo]

So I removed my targa rear glass and it was dated from 1984 (so a 3.2 carrera I assume). So I found 2 glasses from 69. They are exactly the same. Both of them are lighter and the glass is much thinner than the 84, but the 69 are wider by 1cm!!!