Here's why it's complex:
* No factory provision: 1959 F-100s didn't come with factory air conditioning. This means there's no pre-existing infrastructure (like mounting points, wiring harnesses, or ventilation ducts). Everything needs to be added.
* Space constraints: Classic trucks have limited space under the hood and in the cab. Finding room for the compressor, condenser, evaporator, and all the associated lines and components is a challenge. You'll likely need to relocate or modify existing parts.
* Custom fabrication: You'll probably need to fabricate brackets and mounts to securely install the AC components. This requires welding, cutting, and other metalworking skills.
* Electrical work: Wiring the system requires expertise to connect it to the truck's electrical system safely and correctly.
* Refrigerant handling: Working with refrigerants requires proper training and safety precautions. Improper handling can be dangerous.
Options:
* Aftermarket kits: Several companies specialize in aftermarket AC kits for classic trucks. These kits often provide many of the necessary components, but still require significant installation work. The quality and fit can vary greatly between brands.
* Professional installation: The most straightforward (though expensive) option is to have a professional automotive AC specialist install the system. They have the experience and tools to handle the complexities of the installation.
In summary, while it's *possible* to install air conditioning in a 1959 Ford F-100, it's a substantial project that requires mechanical aptitude, specialized tools, and a good understanding of automotive AC systems. If you're not comfortable with these aspects, seek professional help.