The Heat is On: Understanding the Need for an Upgrade
The rumble of a classic Chevy truck engine, the chrome glinting in the sun, the feeling of freedom on the open road… all iconic hallmarks of a bygone era. But sometimes, that glorious experience is soured by one thing: the relentless summer heat. If you’re a proud owner of a ’73-’87 Chevy truck, you’ve likely wrestled with the uncomfortable truth that keeping cool can be a challenge. Thankfully, you don’t have to suffer through sweltering drives. This article is your comprehensive guide to bringing the refreshing embrace of air conditioning to your beloved classic. We’ll explore everything you need to know about the world of aftermarket air conditioning kits specifically designed for these iconic trucks.
Why Choose Aftermarket? Unveiling the Advantages
So, why choose an aftermarket air conditioning kit over trying to salvage and repair an aging original system, if one existed at all? The answer lies in a confluence of factors:
First and foremost is *cooling performance*. Aftermarket systems utilize modern technology, including more efficient compressors, condensers, and evaporators. These components work together to provide a level of cooling that the original systems simply can’t match. You’ll be amazed at the difference.
Next comes *reliability*. Modern components are built to tighter tolerances and with better materials, meaning they’re less prone to failure. This translates to a more dependable system that you can rely on for years to come. Say goodbye to frequent repairs and hello to consistent cooling.
Then there’s the *refrigerant factor*. Most aftermarket kits use R-134a refrigerant, a more environmentally friendly option than the older R-12 that was commonly used in original systems. R-134a is readily available, and the systems are designed for optimum performance using this refrigerant.
Finally, there is the matter of *parts availability*. Original AC systems are becoming harder and more costly to find replacement parts for. Aftermarket kits, on the other hand, offer a consistent source of new, reliable parts, ensuring that your system remains operational. Should something go wrong, getting the replacement parts is very easy.
Choosing the Right Kit: Navigating the Options
The market offers a variety of air conditioning kits tailored for 73-87 Chevy trucks. Understanding the different types is essential for choosing the best fit for your needs and budget.
Under-Dash Systems
These kits are a popular entry point. They typically involve mounting the evaporator unit under the dashboard.
*Pros:* Often more affordable and easier to install.
*Cons:* Can take up valuable dash space and may not deliver the same level of cooling as other systems.
Complete Systems
These kits offer a more comprehensive approach. They are designed to integrate into your truck.
*Pros:* Provide superior cooling performance and a more integrated look.
*Cons:* Can be more complex to install, and they typically come with a higher price tag.
Component Kits
If you’re not looking for a complete overhaul but simply want to upgrade or replace certain parts of the system, component kits are the way to go.
*These kits often involve changing the compressor, condenser, or evaporator unit.* These are the ideal solutions for a gradual upgrade or for tackling an issue with a specific part.
When making your choice, consider the following:
*Your Budget:* Air conditioning kits vary greatly in price. Set a budget to guide your decision.
*Your Skill Level:* Consider your level of mechanical aptitude. Do you prefer a DIY project, or would you rather hire a professional?
*Your Desired Cooling Performance:* How much cooling do you need? Do you live in a climate with extreme heat?
*Your Aesthetic Preferences:* Do you prefer a system that blends seamlessly with the truck’s original design, or are you open to a more modern look?
*Vehicle Configuration:* Some kits are designed for specific engine types or cab styles. Make sure the kit is compatible with your particular truck.
Decoding the Core Components: What Makes the Magic Happen
To understand how the system works, let’s explore the key components:
*The Compressor:* The heart of the system. The compressor pressurizes the refrigerant, causing it to heat up.
*The Condenser:* Located in front of the radiator, the condenser dissipates heat from the refrigerant.
*The Evaporator:* The evaporator, located inside the cab, absorbs heat from the air, cooling it.
*The Expansion Valve/Orifice Tube:* These components regulate the flow of refrigerant, creating the pressure drop necessary for cooling.
*The Receiver/Drier:* This component filters moisture and debris from the refrigerant, protecting the system.
*Hoses & Fittings:* These connect the various components, allowing the refrigerant to circulate. It is essential to use the proper hoses and fittings, designed for the refrigerant used.
*Blower Motor & Controls:* The blower motor circulates the cooled air within the cab. The controls allow you to adjust the fan speed and temperature.
*Wiring Harness:* These kits include a wiring harness to connect the various components.
From Workshop to Highway: A Simplified Installation Overview
While the installation process can vary depending on the kit, here’s a general overview:
*Preparation is Key:* Gather all the tools, read the instructions carefully, and disconnect the battery.
*Compressor Mounting and Belt Routing:* Install the compressor and route the drive belt.
*Condenser Installation:* Mount the condenser in front of the radiator.
*Evaporator Installation:* Install the evaporator inside the cab.
*Hose Routing and Connection:* Connect the hoses and fittings, ensuring they’re properly sealed.
*Wiring Connections:* Connect the wiring harness.
*Flushing:* Flushing is a critical process that should be carried out before installing any new components to ensure no debris or residual liquid remains.
*Refrigerant Charging:* The charging process will require specialized equipment.
*Testing and Troubleshooting:* Check for leaks and ensure the system is operating correctly.
Valuable Tips for Success: Making the Most of Your Upgrade
*Choose the Right Kit:* Research and choose a reputable manufacturer.
*Quality is Paramount:* Invest in quality components for long-term reliability.
*Parts Compatibility is Crucial:* Double-check that all the parts in the kit are compatible with your truck’s engine, cab, and chassis.
*Engine Power:* Be aware that the system will draw some power from the engine.
*Ventilation is Key:* Ensure the truck’s vents are clean and functional for optimal airflow.
*Regular Maintenance:* Get the system checked annually to ensure it continues to operate at peak efficiency.
Cost Considerations: Finding the Right Balance
Air conditioning kits for 73-87 Chevy trucks can range in price. Basic under-dash systems can start at a few hundred dollars, while comprehensive systems with all the bells and whistles can easily exceed a thousand. Additionally, the cost of professional installation can vary depending on the complexity of the kit and the labor rates in your area. Be sure to factor in this cost when budgeting for your project.
Consider these reputable suppliers:
*Summit Racing
*Classic Auto Air
*Vintage Air
Closing Thoughts: Enjoy the Cool Ride!
Installing an aftermarket air conditioning kit in your 73-87 Chevy truck is a rewarding project that can significantly enhance your driving experience. By understanding the options, choosing the right kit, and following the installation process carefully, you can transform your classic truck from a summer scorcher into a comfortable cruiser.
So, are you ready to enjoy the cool breeze in your classic Chevy? Embrace the upgrade, and get ready to experience the joy of driving your truck, no matter how hot the weather gets. Get out there and enjoy the cool ride!
