If you’re the proud owner of a square body Chevy, particularly a 1973–1987 model, chances are you’ve had to think about replacing some parts — and one of the most common is the windshield. Whether it’s cracked from road debris, worn from age, or you’re restoring your classic truck to mint condition, knowing the ins and outs of 73-87 Chevy Truck windshield replacement can save you time, money, and headaches.
This guide will walk you through everything you need to know about replacing the windshield in your vintage Chevy pickup — including tools, replacement glass types, DIY versus professional installation, and cost breakdowns.
Understanding the Importance of 73-87 Chevy Truck Windshield Replacement
The windshield isn’t just a piece of glass. For 73-87 Chevy trucks, it contributes to both safety and style. Over the years, exposure to the elements, vibrations from rough roads, and simple aging can cause chips, cracks, or cloudiness that make visibility a safety issue.
A well-maintained windshield also contributes to the structural integrity of the cab, especially in the event of a collision. This is why timely 73-87 Chevy truck windshield replacement is not only an aesthetic upgrade but also a critical safety measure.
Why the 73-87 Chevy Trucks Are Unique
The 1973 to 1987 Chevrolet and GMC C/K series pickups — also known as “square bodies” — have a boxy, rugged design that’s become iconic among classic truck enthusiasts. While these trucks are known for their durability, their windshields are larger and more upright compared to modern sloped windshields, which affects installation and replacement techniques.
Notable design points:
- No airbags or high-tech sensors like modern vehicles
- Rubber gasket seal instead of urethane adhesive (in most original models)
- Can typically be installed without removing the dash
These features make it a bit easier for a DIY windshield replacement compared to today’s vehicles — if you have the right tools and patience.
73-87 Chevy Truck Windshield Replacement Process
If you’re planning a 73-87 Chevy truck windshield replacement, here’s an outline of what the process typically involves:
Step 1: Gather Necessary Tools and Materials
To complete the replacement properly, you’ll need:
- Replacement windshield (OEM-style or aftermarket)
- New windshield rubber gasket seal
- Windshield rope tool
- Suction cup glass holders
- Plastic trim removal tool
- Spray bottle with soapy water
- Shop towels
If your original gasket is dry-rotted or cracked (which it likely is), it’s best to install a new one to ensure a tight seal.
Step 2: Remove the Old Windshield
- Start by removing any trim around the windshield.
- Use a trim tool or flathead screwdriver carefully to avoid damaging the surrounding metal.
- Push the windshield out from the inside, working slowly along the edges.
- Have a friend help catch and safely place the glass once it comes free.
Step 3: Clean the Pinch Weld Area
Before placing the new glass, clean all old adhesive and debris from the pinch weld area (the frame around the windshield opening). Surface rust should be treated with rust-inhibiting primer.
Step 4: Install New Gasket
Fit the rubber seal around the new windshield glass. Make sure the groove is properly seated and not twisted.
Step 5: Use the Rope-In Method
Place a strong cord or rope inside the channel of the gasket that will seat into the truck frame. Set the glass in position and slowly pull the rope from inside the cab, working around the perimeter to “pull” the lip of the seal over the metal flange.
Spraying soapy water can help lubricate the process. Don’t rush this — it’s a job that requires precision.
Step 6: Check for Proper Seal
Inspect all sides of the glass to ensure a tight fit with no gaps. You may want to use glass sealant around the edges if needed (especially if your truck is prone to leaks).
DIY vs Professional Windshield Replacement
Replacing your own windshield on a 73-87 Chevy truck is very doable for someone with moderate mechanical skills. However, if you’re unsure, a professional installer can handle it quickly and typically guarantees the work.
DIY Pros:
- Save labor costs ($100–$200+)
- Great for restoration enthusiasts
- Control over parts used (OEM vs aftermarket)
DIY Cons:
- Takes time and effort
- Risk of breakage or improper seal
- No warranty on the installation
Professional Pros:
- Fast and insured
- Warranty on installation and parts
- Correct tools and techniques
Professional Cons:
- Higher cost overall
- Less control over the brand of glass used
Cost of 73-87 Chevy Truck Windshield Replacement
The price to replace a windshield on a 73-87 Chevy truck varies depending on where you source the parts and whether you hire a pro.
| Component/Service | Cost Estimate |
|---|---|
| Windshield Glass (OEM) | $150 – $300 |
| Rubber Gasket Seal | $40 – $100 |
| DIY Tools (if needed) | $20 – $60 |
| Professional Installation | $200 – $350 |
| Total (DIY) | $190 – $460 |
| Total (Professional) | $300 – $600+ |
Prices will vary based on location, part quality, and whether or not you already own the tools.
Tips for a Successful Windshield Replacement
- Always use a friend to help with lifting and positioning the glass.
- Don’t reuse old gaskets — they harden over time and can leak.
- Test fit the glass before final installation to ensure proper sizing.
- Avoid harsh chemicals when cleaning the new glass to prevent haze.
- Let the vehicle sit for 24 hours before driving if you used sealant.
Where to Find 73-87 Chevy Truck Windshield Parts
Parts for square body Chevys are widely available from both OEM and aftermarket vendors:
- LMC Truck
- Brothers Trucks
- Classic Industries
- RockAuto
- eBay and Craigslist (for local pickups)
When ordering, confirm whether the glass is clear, shaded, or tinted — to match your existing or desired style.
Should You Restore or Upgrade?
While many enthusiasts prefer keeping their 73-87 Chevy trucks as original as possible, some choose to upgrade with newer-style seals or even one-piece panoramic windshields.
Things to consider:
- OEM-style glass maintains the classic look
- Upgraded seals may prevent future leaks
- Some custom shops offer flush-fit glass for a modern look
Common Problems After Replacement
If not installed correctly, you may experience:
- Wind noise at highway speeds
- Water leaks in heavy rain
- Cracks if glass is under stress
- Poor visibility due to fogging (cheap glass coatings)
Most of these issues are avoidable with the right seal, careful installation, and quality glass.
Final Thoughts
Replacing the windshield on your classic truck doesn’t have to be intimidating. With the right tools, some help, and a bit of patience, 73-87 Chevy truck windshield replacement can be a rewarding project that boosts your vehicle’s safety, value, and curb appeal.
Whether you’re restoring a showpiece or keeping your daily driver roadworthy, investing in a solid windshield replacement is always a smart move for classic Chevy truck owners.
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