Ella Walter
Installing a floor pan in a 1967 Chevy Truck requires some preparation and a good understanding of the process. The first step is to ensure that the truck is completely stripped and sitting on front and rear dollies, with no rust or rot in the frame or body. Next, install the necessary frame connectors and place jack stands under the front frame rails, the centre of the rockers, and under the rear frame rails. The old pan can then be removed, and the mounting surfaces cleaned. Finally, the new pan can be set in place, with the driver's side door opening being a common installation point.
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What You'll Learn
Removing the old pan
To remove the old pan from your 67 Chevy truck, you will need to place jack stands under the front frame rails, the centre of the rockers, under the sub-frame connectors, and under the rear frame rails. Once the truck is securely propped up, you can begin the removal process.
Start by removing the old pan from the front seam to the back seam. This may involve cutting or grinding, depending on the condition of the pan and the fasteners. Be sure to wear appropriate protective gear, including gloves and eye protection. Remove the old pan in small sections, working your way from front to back. Use a pry bar or similar tool to carefully pry the pan away from the seams. Be careful not to damage the surrounding structure or any other components.
Once the old pan is removed, clean all mounting surfaces and remnants of factory welds. You can use a grinder or a wire brush to smooth out the surfaces and prepare them for the new pan. It is important to ensure that all surfaces are clean and free of debris, rust, or corrosion. Use a rust inhibitor or primer to protect the mounting surfaces if necessary.
Finally, inspect the surrounding structure for any damage or corrosion. Ensure that the rockers, sub-frame connectors, and frame rails are in good condition and capable of supporting the new pan. If there is any damage or weakness, address it before installing the new pan to ensure a solid and secure installation.
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Cleaning mounting surfaces
To clean mounting surfaces when installing a floor pan in a 1967 Chevy truck, you will need to first remove the old panel. Once the old floor is removed, you can decide whether to replace the whole floor or opt for a partial floor panel. If you are installing a one-piece panel, it will need slight trimming before welding it in.
Before welding, you must ensure that the mounting surfaces are clean and rust-free. A 4-1/2" electric grinder with a wire wheel can be used to clean up the edges of the good part of the floor. You can also use an air-powered sander to achieve this. The goal is to have a shiny, solid, rust-free surface to weld onto.
For additional protection against rust, spray both sides with a zinc-rich primer. These are offered by many different companies and will help protect the metal. The primer dries quickly and gets sprayed on after trimming but before welding.
After cleaning both mating surfaces, test fit the panel to the floor several times. When you are satisfied with the fit, use C-clamps to clamp the panel into place while aligning everything. Tack on a few welds to hold the panel in place, then step back and check your work before final welding.
You can also apply a sealer like POR-15 to fix pinholes in your floor pans and prevent rust. Additionally, modern cars often have box sections—hollow metal struts on the floor pan—that can be cleared with stiff wire to remove any blocked drain holes.
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Setting the new pan in place
First, ensure that the old pan has been completely removed and that all mounting surfaces are clean. Any remnants of factory welds should be ground smooth to create a level surface for the new pan. This preparation is essential for a secure and precise fit.
Next, carefully guide the new pan into position. For a 67 Chevy Coupe, it is recommended to insert the pan from the top through the driver's side door opening. This approach may vary depending on the specific model and your personal preferences, but the goal is to find the easiest and most efficient way to manoeuvre the pan into place.
As you position the new pan, take your time and work meticulously. Ensure that the pan is properly aligned and fits snugly in the designated space. Verify that all the necessary braces and floor supports are in place and securely attached.
Once the new pan is in the correct position, you can begin the process of securing it. Depending on the vehicle and the pan's design, this may involve welding, bolting, or using other appropriate fasteners. Ensure you follow the manufacturer's instructions and industry best practices for a safe and durable installation.
Finally, double-check your work. Inspect the new pan's positioning and ensure that it is securely installed. Look for any signs of misalignment or loose connections and make the necessary adjustments. A thorough final check ensures the safety and longevity of your new floor pan installation.
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Installing Alston Racing frame connectors
The installation process is relatively easy and does not require specialized skills or tools. The connectors come with Grade 8 hardware and detailed instructions to guide you through the process. It is recommended to have a helper during the installation process to make it easier and faster.
To begin the installation, carefully remove any existing components that may interfere with the new frame connectors. Clean and prepare the surface of the stock floor to ensure a proper fit and secure installation. Place the Alston Racing frame connectors into position, aligning them with the mounting points on the stock floor.
Utilize the provided hardware to securely fasten the connectors in place. Ensure all bolts are tightened to the specified torque settings. Once the connectors are securely in place, you can consider additional reinforcement if desired. Some enthusiasts choose to weld the connectors for added strength, but this is not a requirement.
Finally, inspect your work and ensure that all components are securely fastened and functioning properly. Test drive your 67 Chevy Truck to experience the improved consistency and performance delivered by the Alston Racing frame connectors. Enjoy your upgraded vehicle, knowing that the frame connectors will enhance the durability and handling of your classic truck.
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Rocker panels and cab corners
Rocker panels are the outer coverings of the rockers, which are the steel bars that run vertically along the sides of the vehicle, just below the doors. They provide structural support to the truck and also serve as a stylistic element. Cab corners, on the other hand, are located at the corners of the cab, connecting the rocker panels and the floor pan. They add strength and rigidity to the overall structure.
When installing a new floor pan, it is recommended to use heavy-duty rocker panels and cab corners that are made to OE (original equipment) specifications. These parts are designed to fit perfectly and make the installation process easier. The rocker panels and cab corners should be made of high-quality, heavy-duty 18-gauge metal to ensure durability and strength.
Some manufacturers, such as JL Fabrication, offer complete cab floor pan assemblies that include the floor pan, rocker panels, and cab corners. This can simplify the installation process as all the parts are designed to fit together seamlessly. The assembly may also include additional features like braces and floor supports that further enhance the structural integrity of the truck's cab.
It is important to follow the manufacturer's instructions and industry best practices when installing the rocker panels and cab corners. Proper fitment and secure attachments are crucial to ensuring the safety and longevity of the vehicle. With careful planning and execution, installing a new floor pan, along with rocker panels and cab corners, can significantly improve the structural integrity and aesthetics of your 67 Chevy truck.
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Frequently asked questions
The first step is to install Alston Racing frame connectors and place jack stands under the front frame rails, the centre of the rockers, under the sub-frame connectors and under the rear frame rails.
The second step is to remove the old pan from the front seam to the back seam and clean all mounting surfaces.
The third step is to set the new pan in place. This can be done from the top by guiding it in through the driver's side door opening.
The floor pan you should install depends on the type of shifter you have. If you have a manual shifter, you should install a full Dynacorn with a manual shift hump.
