1969–1970 Ford Mustang Fastback — DOT-Certified Flush-Mount Glass Kit — Front Windshield and Rear Glass — Fastback Only — Trimless Rubberless — Laminated and Tempered — American-Made — Sold by Fesler USA, Phoenix, Arizona

In Stock & Shipping Now. Designed, prototyped, molded, and manufactured in North America. Inspected and shipped from our Phoenix shop. Typical ship window is 15–20 business days after signed authorization.

American-Made Quality. Designed, prototyped, molded, and manufactured in North America using the original Float Glass process (Pilkington lineage). This is not import glass resized to approximate fit. This is glass engineered from the ground up for the 1969–1970 Mustang Fastback.

Fits 1969 and 1970 Ford Mustang Fastback only. Front windshield and rear glass included. Does not fit Coupe or Convertible.

Give your 1969–1970 Mustang Fastback the modern trim-delete, flush-bonded look without compromising fit, safety, or legality. Unlike oversized import glass that often needs to be sanded or "massaged" to fit, Fesler Flush-Mount Glass is engineered through iterative prototyping, test-fit molds, and multi-vehicle verification to seat precisely in the OE opening. The result is tight, repeatable gaps, clean sightlines, and a professional installation on every build. Front windshield is DOT-certified laminated glass. Rear is tempered glass. Both feature an OE-style green hue and block 99.9% UVA. No exterior trim or rubber weatherstrip required. This is the glass a Mach 1, Boss, or any 1969–1970 Fastback build deserves.

DOT-CERTIFIED. LAMINATED FRONT. TEMPERED REAR. AMERICAN-MADE.
TRIMLESS. RUBBERLESS. FLUSH-BONDED. NO SANDING REQUIRED TO FIT.

No sanding required to fit

NO SANDING REQUIRED TO FIT.

Some brands oversize glass and expect you to sand to size on every install. Fesler prototypes, molds, test-fits, manufactures, and test-fits again so your glass fits as delivered. The process takes longer. The tooling costs more. The result is glass that seats in the opening without guesswork. You get what you pay for.

Why builders choose Fesler flush-mount glass

True flush-mount design: Purpose-sized glass bonds within the OE aperture with a tight, even gap. Repeatable fitment from unit to unit.
Trimless, rubberless perimeter: Uses a FRIT band, primer, and automotive urethane bonding system. No exterior molding or rubber weatherstrip required. The bonded perimeter is the finished edge.
Manufacturing pedigree: Made in North America using the original Float Glass process (Pilkington lineage) and LOF-style mold strategy for factory-grade curvature and edge quality.
Optics and protection: OE-style green hue. Windshield is laminated for safety. Rear is tempered for strength. Both block 99.9% UVA.
DOT-certified: The front windshield is DOT-approved for legal street use. This is real laminated automotive glass, not polycarbonate.
Show-car friendly: Clean, bonded install complements custom paint, smooth bodywork, and high-end Fastback builds.
American-made: Designed, prototyped, molded, and manufactured in North America. Not imported and resized.

What is flush-mount glass

Precisely sized glass sits within the OE opening with a tight, uniform reveal. It eliminates exterior trim and rubber weatherstrip entirely and bonds in with an automotive FRIT band, primer, and high-strength urethane, producing an OE-style fit with no body modifications on most correctly prepared vehicles. The result is a clean, modern sightline with no visual interruption between glass and body.

Polycarbonate vs. laminated automotive glass — read before you buy

If you are shopping flush-mount glass, you will encounter polycarbonate ("plastic") windshields. Here is what you need to know before you decide.

Polycarbonate ("Plastic") Windshields

Not DOT-approved for public roads. Not street legal for windshield use.
Prone to scratching, hazing, yellowing, and heat distortion. Wipers can mar the surface.
Useful for track, off-road, or display use where permitted, but not recommended for street builds.
Potential insurance and safety concerns in a collision due to non-approved materials.

Laminated Automotive Glass (Fesler)

DOT-approved laminated windshield for legal street use. Tempered rear glass.
Safety and clarity: resists penetration and remains intact under impact. Superior optical quality.
Durability: excellent scratch and UV resistance for long-term clarity.
Model-specific fit for a clean, uniform reveal with the Fesler flush-bond system.

Want the full breakdown? Read our deep-dive: Polycarbonate windshields are not street legal — here is why real laminated automotive glass is safer and smarter.

What's included

One (1) laminated front windshield — DOT-certified, green hue, flush-mount profile
One (1) tempered rear glass — green hue, flush-mount profile

Not included: Adhesives, primers, or installation labor and tools.

Fitment

Primary application: 1969 and 1970 Ford Mustang Fastback (including Mach 1, Boss 302, Boss 429, and SportsRoof).
Body style: Fastback only.
Glass type: Front windshield is laminated (DOT-certified). Rear glass is tempered.
Optics: OE-style green hue. Blocks 99.9% UVA.

Fastback only. Does not fit Coupe or Convertible models.

The 1969–1970 Mustang Coupe uses different front and rear glass parts. Neither piece in this kit will fit a Coupe. Convertibles also use a different configuration. This kit is designed exclusively for the 1969–1970 Mustang Fastback body style. Verify your body style before ordering.

This kit does not fit the 1964½–1966 or 1967–1968 Mustang. Each Mustang generation uses different body and glass dimensions. Fesler offers separate flush-mount glass kits for the 1964½–1966 and 1967–1968 Mustang Fastback and Coupe. Confirm your model year before ordering.

Dynacorn bodies — this glass will not fit without substantial modification.

If you are using a Dynacorn body shell, Fesler flush glass will not fit without substantial metal work and modification to the shell prior to install. This is not a minor trim-to-fit situation. Plan for significant body corrections before purchasing. Other reproduction shells may also require work, but Dynacorn bodies are the most common issue on this platform.

Glass is non-returnable.

If the glass does not fit out of the crate, your vehicle may require body work. This is more common on reproduction shells. Decide whether you are willing to perform this work before purchasing. Contact Fesler if you have questions about your specific shell.

Installation and safety

Professional install only: We do not endorse DIY flush-glass installs. Use a certified auto-glass technician experienced with urethane-bonded flush glass.
Adhesive: Use automotive urethane with proper primers. Do not use butyl tape. Butyl holds approximately 60 psi. Urethane systems hold 600 psi or more. There is no comparison.
Test-fit policy: Test fit within 60 days of receipt to identify any vehicle-specific issues requiring body work. Warranty and replacement are not available after 60 days.
Returns: Glass is non-returnable. If fitment concerns arise, body corrections may be required on the vehicle side.

Do not use butyl tape for flush glass installation.

Butyl tape holds approximately 60 psi. Automotive urethane bonding systems hold 600 psi or more. Flush-mount glass must be bonded with urethane and proper primers for safety, structural integrity, and a lasting install. This is not optional.

Test fit within 60 days of receipt.

Fesler glass is engineered for precise fitment on correctly prepared vehicles. Test fit within 60 days of receipt to identify any vehicle-specific issues. If fitment concerns arise, body corrections on the vehicle side may be required. Warranty and replacement are not available after 60 days. Glass is non-returnable.

Shipping, billing, and lead time

Ships LTL truck freight due to size and weight. Commercial address recommended for cost and ease of delivery.
Freight quoted after checkout. Use our carrier or yours. International freight is available, including Canada and Mexico.
Billing: All glass orders require a signed Credit Card Authorization Form. We do not charge your card until the glass is ready to ship.
Typical ship window: Approximately 15–20 business days after we receive your signed authorization.

Your card is not charged until the glass is ready to ship. After checkout, you will receive a Credit Card Authorization Form. Sign and return the form to begin the process. Typical ship window is 15–20 business days from signed authorization.

Magazine features

Fesler flush-mount glass has been featured on nationally recognized 1969–1970 Mustang builds, including:

Sam Medina's 1969 Mustang Mach 1 — featured in Fuel Curve.

This is the glass builders and magazines trust. When a 1969–1970 Mustang Fastback build needs to be right — for a feature, for a show, for the street — Fesler flush-mount glass is the standard.

Frequently asked questions

Does this fit the 1969–1970 Mustang Coupe?

No. The 1969–1970 Mustang Coupe uses different front and rear glass parts. Neither piece in this kit will fit a Coupe. This kit is designed exclusively for the Fastback body style. Verify your body style before ordering.

Does this fit Mach 1 and Boss models?

Yes. The Mach 1, Boss 302, Boss 429, and SportsRoof all share the Fastback body style and glass dimensions. This kit fits all of them.

Does this fit a convertible Mustang?

No. Convertible Mustangs use a different windshield and rear glass configuration. This kit is designed for the Fastback body style only.

Will this fit a 1967–1968 or 1964½–1966 Mustang?

No. Each Mustang generation uses different body and glass dimensions. Fesler offers separate flush-mount glass kits for the 1964½–1966 and 1967–1968 Mustang Fastback and Coupe. Confirm your model year before ordering.

Will this fit a Dynacorn body?

No, not without substantial modification. If you are using a Dynacorn body shell, Fesler flush glass will not fit without substantial metal work and modification to the shell prior to install. This is not a minor trim-to-fit situation. Plan for significant body corrections before purchasing. Contact Fesler before ordering if you are running a Dynacorn body.

Do I need to modify the body to install this glass?

Typically no, on correctly prepared OE shells. Reproduction bodies (especially Dynacorn) require substantial metal work. Other reproduction shells may also need corrections. Contact Fesler if you are unsure about your shell.

Is exterior trim or rubber weatherstrip required?

No. The bonded FRIT band, primer, and urethane system provides the finished perimeter. No exterior molding, trim, or rubber weatherstrip is required. Keep the gap clean and uniform for the best appearance.

Is this glass street legal?

Yes. The front windshield is DOT-certified laminated automotive glass, approved for legal street use. The rear glass is tempered. This is not polycarbonate. This is real automotive glass.

What is the difference between Fesler glass and polycarbonate windshields?

Polycarbonate ("plastic") windshields are not DOT-approved for public roads and are not street legal in the windshield position. They are prone to scratching, hazing, yellowing, and heat distortion. Fesler flush-mount glass is DOT-certified laminated automotive glass with tempered rear glass. It is street legal, safer, more durable, and optically clearer. See the full comparison above.

Do I need to sand the glass to fit?

No. Fesler flush-mount glass is prototyped, molded, test-fit, manufactured, and test-fit again so it fits as delivered. Competitors often oversize glass and expect you to sand to size. Fesler glass does not require sanding to fit.

Can I install this myself?

Fesler does not endorse DIY flush-glass installs. Use a certified auto-glass technician experienced with urethane-bonded flush glass. Proper primers and urethane adhesive are critical for safety and a lasting bond.

Why can I not use butyl tape?

Butyl tape holds approximately 60 psi. Automotive urethane bonding systems hold 600 psi or more. Flush-mount glass must be bonded with urethane and proper primers for safety, structural integrity, and a lasting install. Butyl is not an acceptable adhesive for flush glass.

Is this a heated or sensor windshield?

This kit follows classic construction: laminated front windshield and tempered rear glass. Transfer OE accessories as applicable to your build.

How does shipping and billing work?

This product ships via LTL truck freight (commercial address recommended). Freight is quoted after checkout. After checkout, you will receive a Credit Card Authorization Form. Your card is not charged until the glass is ready to ship. Typical ship window is 15–20 business days after signed authorization is received. International freight is available, including Canada and Mexico.

Can I return the glass?

No. Glass is non-returnable. Test fit within 60 days of receipt to identify any vehicle-specific issues. If fitment concerns arise, body corrections on the vehicle side may be required. Warranty and replacement are not available after 60 days. Contact Fesler before ordering if you have questions about your shell.

Build with Fesler quality.

Flush-mount glass. Interior panels. Billet hardware. Every piece designed and built in Phoenix. Browse all Fesler products.

Questions about compatibility, Dynacorn fitment, body style fitment, freight, or scheduling a certified installer? Contact Fesler USA. We will help you plan it right.

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