Back Glass Install

[badasscuda]

Getting ready to install the rear glass. I was looking at the service manual and noticed that there are 4 top and side spacers. Search has found nothing.
Was hoping that someone might have one lying around so that they could give me the dimensions so that I could make one. A pic would be great, too.
I only had one of the bottom spacers, so I 3D printed a pair of them with flexible filament, like the factory ones. Now if I could just do that for the upper four
I would be set.

[sassygreen]

Why bother with the top. I am not so sure the factory did. When I took my car apart spacers were only on the bottom. Besides when that back glass lays down on the butyl tape it is pretty much a done deal. Not much movement left,right, up or down once the glass hits the tape. Use the spacers on the bottom for alignment. Lay windshield against the bottom spacers then let windshield down on to the butyl tape.

[badasscuda]

Not using butyl tape. I hate that stuff. More interested in getting the correct spacing. If no one can help, then I'll just wing it like I always do.

[anlauto]

You're way over thinking it.

[jimynick]

The old school glass guys used to cut off a wee chunk of the butyl and use it as a spacer beneath the circumference band of butyl. I know you don't like butyl, but the point was that all you really need is a slightly giving support under the glass. Any good windshield guy should be able to fix you up, just go and ask one. 

[badasscuda]

I guess the factory over thought it too. Since I have the printer I just wanted to duplicate it. I will probably put a strip of butyl under it to get the correct
thickness and print out the correct spacer. Then I won't have to guess how deep to set the glass in the urethane.

[anlauto]

Well you can't "duplicate'' the factory by using urethane

[dougs bs23]

I found by only setting glass in the urethane that it will allow the glass to sink into it which will give a good seal however your trim won't seat tight to the glass leaving gaps between the glass and trim. Imo 5/16 tape set glass seal around with the window weld. Trim sets tight to glass but that's just me


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[sassygreen]

Post us some after pictures.

[jimynick]

Then there's the middle option. Use the butyl in small pieces as shims to set the height and urethane the rest of it. You can also buy different modulus rated urethane to prevent the sinking somewhat. Put in correctly, I've seen butyl mounted glass not come loose in rolled over cars, but, as always, it's your car and your call. Good luck. 

[HP_Cuda]

I've heard folks complain because using butyl tape would allow the airbag to pop the window clear off the car.

And I say.... there were no freakin air bags back then!!!

[js29no]

I've heard folks complain because using butyl tape would allow the airbag to pop the window clear off the car.

And I say.... there were no freakin air bags back then!!!

   

[badasscuda]

I found by only setting glass in the urethane that it will allow the glass to sink into it which will give a good seal however your trim won't seat tight to the glass leaving gaps between the glass and trim. Imo 5/16 tape set glass seal around with the window weld. Trim sets tight to glass but that's just me

Thanks for the replies.  5/16 sounds like a good starting point. The primer will be here today so I should get it in this weekend.

[734406pk]

The spacers should be included with the 5/16" butyl tape/cord. I used 3M brand, available at Advance Auto, Amazon etc. You can use 3M Windoweld Poly around the outside edge of the glass and form a 45 degree angle to further seal the glass. This method will retain the proper glass depth so the trim will fit and improve glass seal. Worked for me!