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What's the skinny on unzipping the glass?
#1
I just recently bought a '73 convertible, and it will be in storage until teh warmer months.

I have heard conflicting stories about the importance of unzipping the rear window (mine is glass) when putting the top down.

I was standing there with the seller, talking about the procedure for lowering the top, when the owner of teh consignment shop said "don't forget to unzip the window. It may break under pressure if you don't unzip it."

The seller just said, "I never unzip it, and it seems fine."

So what's the real scoop?
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#2
I've never unzipped mine. It's a 25+ year old top. I would be afraid it wouldn't zip back up again.

Rick Bombard
1971 Grabber Green Mach 1 351C 4V
2013 Race Red California Special Convertible
1973 Medium Copper Metallic Convertible 302 4V     SOLD
1953 F-100 project

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#3
Up to 1970 Mustangs you had to unzip the panel with the glass or you were likely to break it. The 1971 - 3 Mustangs (and Cougars) were the first where you did not have to unzip the glass panel while dropping the top.

One reason a number of folks back in the day switched to plastic (aside from price) was that you did not have to unzip the panel. Of course you were unable to see through the plastic after about a year, but that's a different story. My 69 convertible has the silicone folding seam in the middle of the glass. You need to fold the glass in half so it will fit into the well liner.

If you do want to unzip it, raise the top partially to take the tension off it -- same for zipping it back in place.
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#4
Bill73Ragtop;107072 Wrote:Up to 1970 Mustangs you had to unzip the panel with the glass or you were likely to break it. The 1971 - 3 Mustangs (and Cougars) were the first where you did not have to unzip the glass panel while dropping the top.

One reason a number of folks back in the day switched to plastic (aside from price) was that you did not have to unzip the panel. Of course you were unable to see through the plastic after about a year, but that's a different story. My 69 convertible has the silicone folding seam in the middle of the glass. You need to fold the glass in half so it will fit into the well liner.

If you do want to unzip it, raise the top partially to take the tension off it -- same for zipping it back in place.

Thanks Bill! That's good news! I don't think I would have the patience for that.
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#5
I've never unzipped mine, and doubt that I ever will. I wouldn't worry about it one bit.

Doc

[Image: 6y14ea.jpg]

Project started 8-7-10
Completed: All new suspension, rebuilt 351C H Code bored .030 over with mild cam and intake, new 3.50 TracLok, custom exhaust system
Current "mini-project": interior upgrade Undecided
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#6
73vertproject;107133 Wrote:I've never unzipped mine, and doubt that I ever will. I wouldn't worry about it one bit.

Nope... not gonna say it. rofl

Eric

[Image: mach1sig2.gif]
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#7
Bwahahaha!!

Yep... I like it here
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#8
Mister 4x4;107143 Wrote:
73vertproject;107133 Wrote:I've never unzipped mine, and doubt that I ever will. I wouldn't worry about it one bit.

Nope... not gonna say it. rofl

So I was going to advise not "unzipping" because back in the day someone in the backseat of my 64 Galaxie convertible "unzipped" it, but left it on the assist straps and it broke as the top went down! But now I think it would be better to just say "leave it zipped up". Blush
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#9
Man, you guys kill me! Tongue

Doc

[Image: 6y14ea.jpg]

Project started 8-7-10
Completed: All new suspension, rebuilt 351C H Code bored .030 over with mild cam and intake, new 3.50 TracLok, custom exhaust system
Current "mini-project": interior upgrade Undecided
  Reply
#10
73vertproject;107221 Wrote:Man, you guys kill me! Tongue

I have owned Mustang convertibles since 1971....no need to unzip!
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