993 windshield with a 964 seal in an SC?

[tshebib]

Hi all.
I've spend hours combing through discussions about putting newer model windshields in our G-body cars. It seems there have been some inconsistent results using the 964 windscreen and some posters mentioned using the 993 windscreen with the 964 seal for best results.
I'm looking for some feedback from those who have tried this.
Thanks, Tom

[OldSpool87]

Sorry I can’t help you solve the mystery but I am curious about the perceived advantage to the 964 glass.

[island911]

The advantage is in the seal. It's more flush fit = more aero, less noisy.

[proporsche]

i do have 1989 windshield with 964 seal in 1985 carrera.. ..there was topic recently --use the search button

Ivan

[Iciclehead]

Been there done that to my '75 911S....no problems, all good.

Not sure if it changed the wind noise at all, but I sure liked it better and think it even added a little structural stiffness

Dennis

[pdtweeks]

Icehead,

what specifically did you do that is "no problems" ??

On this and related windshield options topics, I think that there has been equal parts information and mis-information.

Please be specific about what worked for you...

My car is an '83SC...….would like to use 993 seals....which glass do I use ??

PD

[tshebib]

For a while I was convinced to go with the 993 seals and windscreen but am a little hesitant to change from the rope in method as I'm not sure how to glue in the first seal of the 993 setup. The 964 seal installs similar to the SC but as said, lower profile, no metal trim to fight with and is said to give a better seal against the elements.
Problem is I also read some people had issues the the 964 glass and mentioned the 933 glass is a better fit even with the 964 seal.

[proporsche]

in the article -post i tried to point it to you somebody post that the window opening on 993 is a little different from 964 or 911..look it up ..
Ivan

[Iciclehead]

Originally Posted by pdtweeks

Icehead,

what specifically did you do that is "no problems" ??

On this and related windshield options topics, I think that there has been equal parts information and mis-information.

Please be specific about what worked for you...

My car is an '83SC...….would like to use 993 seals....which glass do I use ??

PD

993 glass and 993 seals 993-541-435-01-OEM and 993-541-925-00-M100 from our host.

Get any good glass guy to glue it in, replace your mirror (Volkswagen works) and you are good to go.

Dennis

[tshebib]

Originally Posted by Iciclehead

993 glass and 993 seals 993-541-435-01-OEM and 993-541-925-00-M100 from our host.

Get any good glass guy to glue it in, replace your mirror (Volkswagen works) and you are good to go.

Dennis

So... You are using the 993 seal and had/have no issues with fitment?
That was my initial thought but got scared about the gluing in part.
Anyone using the 964 seal with the 993 glass?

[proporsche]

i did that for many years on my 911 before i switched to the glass i have mentioned above..Always water leaks...since i was in LA i did not care...........
Ivan

[Iciclehead]

Originally Posted by tshebib

So... You are using the 993 seal and had/have no issues with fitment?
That was my initial thought but got scared about the gluing in part.
Anyone using the 964 seal with the 993 glass?

Zero issues and I am actually happy to have it glued in, the rope in seal always had some issues with sealing at the corners.

I am pretty sure that the 993 glass is bigger than the 911/964 as the 993 glass fits over the flange while the earlier fits inside the flange.

Plus the 993 is cheaper I think....

Dennis

[Sebscst]

My 78sc has the 964 windshield and 964 seal and it’s a perfect fit. I’m also using a 912 rear glass (same as 911 but no defrost lines) with the 964 seal in the back, perfect fit. And rear quarter glass from a 911 (74-89) with 993 seals again perfect fit. No leaks, no trim,I might have even saved a few ounces.

[famoroso]

Originally Posted by Sebscst

My 78sc has the 964 windshield and 964 seal and it’s a perfect fit. I’m also using a 912 rear glass (same as 911 but no defrost lines) with the 964 seal in the back, perfect fit. And rear quarter glass from a 911 (74-89) with 993 seals again perfect fit. No leaks, no trim,I might have even saved a few ounces.

Would like to see that setup, but I'm on opposite coast. Post some pics?

[OldSpool87]

Originally Posted by Sebscst

My 78sc has the 964 windshield and 964 seal and it’s a perfect fit. I’m also using a 912 rear glass (same as 911 but no defrost lines) with the 964 seal in the back, perfect fit. And rear quarter glass from a 911 (74-89) with 993 seals again perfect fit. No leaks, no trim,I might have even saved a few ounces.

How difficult was it to install the 993 seals on the rear quarters?

Thanks

[Sebscst]

None of the seals created any issues. If anything they have to be simpler than the original ones with the metal trim.

[Ian Comerford]

I have had a 964 screen and seal in mine for a while and when it was fitted the guy recommended he insert a windscreen cavity filler, a sort of liquid rubber, as it filled all of the voids. No problems with fitting and noise etc. The 964 seal is quieter than the earlier seal in terms of wind noise

[trond]

993 glass and seals fits with narrow flanged (10 mm) SCs then and thats conclusive ? I was under the impression those cars have a 15 mm flange vs 10 mm on the older SCs (mine is an 80SC)

993 glass and 993 seals 993-541-435-01-OEM and 993-541-925-00-M100 from our host

Originally Posted by Iciclehead

Zero issues and I am actually happy to have it glued in, the rope in seal always had some issues with sealing at the corners.


Dennis

[Sebscst]

Originally Posted by Ian Comerford

I have had a 964 screen and seal in mine for a while and when it was fitted the guy recommended he insert a windscreen cavity filler, a sort of liquid rubber, as it filled all of the voids. No problems with fitting and noise etc. The 964 seal is quieter than the earlier seal in terms of wind noise

What voids?

[Ian Comerford]

Originally Posted by Sebscst

What voids?

Any space under the seal. I was surprised at how much sealant went in there and much happier that the likelihood of moisture getting in was much reduced