Mustang Windshield Installation for 65-68

The surrounding areas on the Mustang are covered and taped to prevent the sealer from getting on those areas.  The windshield molding clips are also installed.

Over the years, one of the most common questions that we receive concerns the installation of a windshield in a 1965-68 Mustang.  Often it is thought that the Windshield Weatherstrip actually seals the glass and prevents any water leaks.  Well, it sort of does, but without the proper sealer and correct installation, it is going to leak.

Jeremy at Maple Hill Restoration (www.MapleHillResto.com) recently installed the windshield in his beautiful Twilight Turquoise '65 Mustang Convertible and supplied us with these great pictures along with his expertise   concerning the installation.

Jeremy also applies sealer around the windshield clip installation hole on the Mustang.  You will note that this is a '65 with the earlier style screw on type clip.

The view from the inside of the Mustang prepared for the windshield installation.

About three tubes of #8509 3M Bedding and Glazing Compound are used to seal the windshield weatherstrip.

One of the key elements needed in the Mustang windshield installation in about 3 tubes of 3M Bedding and Glazing Compound (#8509).  As you can see in the images, this is applied both between the glass and the weatherstrip, but also between the weatherstrip and the body.  This is what really seals the glass from water leaks, not the weatherstrip itself.

Windshield Weatherstrip placed on the Mustang windshield for installation with a string in the groove which will allow the weatherstrip lip to be "pulled" around the windshield frame.  This is done from the interior area of the Mustang.

Rope (String) installed in groove of weatherstrip.  This allows the weatherstrip lip edge to be "pulled" from the inside.

A rope is placed in the "groove" of the weatherstrip and then the weatherstrip is "pulled" in the Mustang.

A bead of sealer is applied around the Mustang windshield frame area.

Another image showing the sealer applied before installation.

The Mustang windshield is placed in the frame of the car, and Jeremy prepares to pull the rope.

As the rope is pulled the Mustang weatherstrip inside lip is pulled towards the inside over the metal edge.

As the rope is pulled the Mustang weatherstrip inside lip is pulled towards the inside over the metal edge.

As the rope is pulled the Mustang weatherstrip inside lip is pulled towards the inside over the metal edge.

As the rope is pulled the Mustang weatherstrip inside lip is pulled towards the inside over the metal edge.

As the rope is pulled the Mustang weatherstrip inside lip is pulled towards the inside over the metal edge.

As the rope is pulled the Mustang weatherstrip inside lip is pulled towards the inside over the metal edge.

As the rope is pulled the Mustang weatherstrip inside lip is pulled towards the inside over the metal edge.

This particular Mustang originally had a clear windshield with a December 1964 (4M) date.  The windshield shown here as an accurately reproduced Carlite logo with the proper markings.  These are available from various suppliers.

After installation, sealer is applied between the glass and the weatherstripping on the Mustang.

Even more sealer (3M Bedding and Glazing Compound) will be applied around the Mustang windshield before the molding is installed.  After the Mustang is fully assembled, it will be water tested, and if a leak is found, more sealer will have to be applied.

That sealer is messy.  Jeremy kind of makes it look easy. :)  If you've never done this, your "messiness" level may be a bit greater!

Excess sealer will be cleaned off.

Excess sealer will be cleaned off.

Applying sealer to the inside lip of the Mustang windshield weatherstrip.

Excess sealer will be cleaned off.

The Bedding and Glazing Compound Sealer is also applied between the Mustang windshield weatherstrip on the body (windshield frame).

The excess 3M Bedding and Glazing Compound Sealer is cleaned from the Mustang windshield weatherstripping.

The Mustang windshield installation is complete.

View of the Mustang windshield installation from the inside of the Mustang.