Rust can be a real headache, especially on classic trucks like your 1998 Chevy/GMC Sierra. One of the most common areas to suffer is the rocker panels. These panels run along the bottom of your truck’s doors, and they take a beating from road debris, salt, and the elements. If your rocker panels are starting to show signs of rust or have holes, you’re probably looking for a solution. Slip-on rocker panels offer a cost-effective and relatively straightforward way to address this problem.
This guide will walk you through the process of installing slip-on rocker panels on your ’98 Sierra. We’ll cover everything from preparing your truck to welding or using other methods to secure the new panels. This project can be tackled by a DIY enthusiast with some basic skills and tools. Let’s get started!
What You’ll Need
- Slip-on Rocker Panels: Make sure you get the right ones for your ’98 Sierra. Check the fitment carefully.
- Safety Glasses: Protect your eyes!
- Work Gloves: For handling metal and avoiding burns.
- Measuring Tape: To ensure accurate measurements.
- Angle Grinder: With a cutoff wheel and grinding disc.
- Wire Brush: For cleaning rust.
- Hammer: For shaping metal if needed.
- Chisel: For removing old panels (optional).
- Welder (and welding supplies) OR Self-Tapping Screws/Panel Adhesive: Depending on your chosen installation method. If welding, you’ll need a welding helmet, welding wire, and shielding gas.
- Metal Primer: To prevent rust.
- Automotive Paint: To match your truck’s color.
- Paint Thinner/Cleaner: For surface preparation.
- Body Filler (Bondo): To smooth out any imperfections.
- Sandpaper: Various grits (e.g., 80, 180, 320 grit) for sanding.
- Masking Tape: To protect areas you don’t want to paint.
- Jack and Jack Stands: For safely lifting and supporting your truck.
- Wheel Chocks: For added safety.
- Drill: If using self-tapping screws.
- Self-Tapping Screws (Optional, for non-welding method): Stainless steel are recommended.
- Panel Adhesive (Optional, for non-welding method): A strong, automotive-grade adhesive.
- Rust Converter (Optional): To treat any remaining rust.
Step-by-Step Installation Guide
Step 1: Safety First!
Before you start, make sure you’re working in a well-ventilated area, especially if you’re welding or using paint. Wear your safety glasses and gloves throughout the entire process. Place wheel chocks behind the rear wheels and ensure the parking brake is engaged. Safely lift the truck using a jack, and securely support it with jack stands. Never work under a vehicle supported only by a jack.
Step 2: Preparing the Area
Remove any obstructions. This might include mud flaps, running boards, or any trim that’s in the way. Clean the area around the rocker panels with soap and water to remove any loose dirt and grime. This is crucial for getting a good look at the damage and for prepping the surface for the new panels.
Step 3: Assessing the Damage and Removing the Old Rocker Panels (if Necessary)
Carefully inspect the existing rocker panels. Determine the extent of the rust and damage. If the existing panels are severely rusted or have large holes, you’ll need to remove them. This usually involves cutting the old panel away using an angle grinder with a cutoff wheel. Be extremely careful not to cut into any other parts of the truck’s body. If the rust is localized, you might be able to leave the old panel in place and weld the new one over it, but this is less common and usually not recommended for severe rust.
If Removing the Old Panel: (See Also: Won Hundred Willow Slip On Sneakers )
- Use the angle grinder to carefully cut along the seams where the rocker panel meets the cab and the floor pan.
- Be cautious not to cut into the inner structure of the truck.
- A chisel and hammer can help separate the old panel from the remaining structure.
- Once the old panel is removed, clean up any remaining metal and remove any loose rust with a wire brush.
Step 4: Cleaning and Preparing the Surface
This is a critical step for ensuring the new panels adhere properly and for preventing future rust. Use the wire brush to remove as much rust as possible from the remaining metal. You want to get down to bare metal wherever possible. If there’s any remaining rust, consider using a rust converter to neutralize it. This will help prevent the rust from spreading under the new panels.
Clean the area thoroughly with paint thinner or a similar cleaner to remove any grease, oil, or dirt. This will ensure that the primer and paint adhere properly. Allow the area to dry completely before moving on.
Step 5: Test Fitting the New Rocker Panels
Before you do anything permanent, test fit the new slip-on rocker panels. Hold the new panel in place and make sure it fits correctly. It should cover the damaged area and align properly with the existing body lines. You might need to make some minor adjustments to the new panel to get a perfect fit. Use a hammer to gently bend the metal if necessary. If the fit isn’t right, you may have the wrong panels or need to trim them slightly.
Step 6: Priming the Surface
Once you’re satisfied with the fit, prime the area where the new rocker panel will be installed. This includes the bare metal on the truck’s body and the inside of the new rocker panel (where it will contact the truck). Use a metal primer designed for automotive use. Apply a thin, even coat of primer and allow it to dry completely according to the manufacturer’s instructions. Priming creates a good base for the paint and helps prevent rust.
Step 7: Installing the Slip-on Rocker Panels: Welding Method
Welding is generally the preferred method for a strong and durable installation. (See Also: Will Two Brothers Slip On Exhaust Work For Rebel 300 )
- Position the new rocker panel in place, ensuring it’s aligned correctly.
- Tack weld the panel in several places to hold it in position.
- Check the alignment again. Make any necessary adjustments before welding the entire seam.
- Weld along the top and bottom seams, making sure to create a strong, continuous weld.
- If the rocker panel extends to the inner structure, weld it to the inner structure as well.
- Grind down any excess weld material to create a smooth surface.
Step 7: Installing the Slip-on Rocker Panels: Non-Welding Method (self-Tapping Screws/panel Adhesive)
This method is suitable if you don’t have welding equipment or experience. Note: The adhesive method alone is not as durable as welding. Many DIYers use a combination of adhesive and screws for extra security.
- Panel Adhesive Method: Apply a generous amount of automotive-grade panel adhesive to the back of the new rocker panel. Position the panel in place and press it firmly against the truck’s body. Use clamps or tape to hold the panel securely in place while the adhesive cures according to the manufacturer’s instructions. This might take several hours or even overnight.
- Self-Tapping Screws Method: Drill pilot holes along the top and bottom edges of the new rocker panel, spaced about 6-8 inches apart. Position the new panel in place. Using the pilot holes as guides, drill through the rocker panel and into the existing metal. Secure the panel with self-tapping screws. Use stainless steel screws for corrosion resistance.
- Combined Method: Many people use both panel adhesive and self-tapping screws for maximum strength and durability. Apply the adhesive, position the panel, and then secure it with screws while the adhesive cures.
Step 8: Finishing Touches: Body Filler, Sanding, and Painting
Once the new rocker panel is securely in place (welded, glued, or screwed), you can start the finishing process.
- Body Filler: If there are any gaps or imperfections where the new panel meets the old body, use body filler (Bondo) to smooth them out. Apply the filler according to the manufacturer’s instructions.
- Sanding: Once the body filler has dried, sand it down with progressively finer grits of sandpaper (e.g., 80, 180, 320 grit) until you achieve a smooth, even surface. Feather the edges of the filler into the surrounding metal for a seamless transition.
- Priming: After sanding, prime the body filler and any areas where the paint has been removed. This will provide a uniform base for the paint.
- Painting: Apply several thin coats of automotive paint, allowing each coat to dry before applying the next. Follow the paint manufacturer’s instructions for drying times and application techniques. You’ll want to use paint that matches your truck’s original color.
- Clear Coat (Optional): Apply a clear coat for added protection and a glossy finish.
Step 9: Final Inspection and Reassembly
After the paint has dried completely, inspect your work. Make sure the new rocker panel is securely attached and that the finish is smooth and even. Reinstall any trim, mud flaps, running boards, or other components that you removed earlier. Clean up any spills or debris. Remove the jack stands and lower the truck. Take your truck for a test drive and enjoy your newly restored rocker panels!
Step 10: Tips and Tricks for a Successful Installation
- Take your time: Don’t rush the process. Rushing can lead to mistakes and a poor finish.
- Measure twice, cut once: Always double-check your measurements before cutting or welding.
- Practice welding: If you’re new to welding, practice on scrap metal before working on your truck.
- Use quality materials: Invest in good-quality rocker panels, primer, paint, and body filler.
- Protect surrounding areas: Use masking tape to protect areas you don’t want to get paint or welding spatter on.
- Cleanliness is key: A clean work area and clean surfaces will lead to a better result.
- Consider professional help: If you’re not comfortable with any of these steps, consider having a professional body shop do the work.
- Safety first: Always prioritize safety throughout the entire process.
- Check for other rust: While you’re working on the rocker panels, inspect other areas of your truck for rust. Address any other issues before they get worse.
- Rust prevention: After the repair, consider applying a rust preventative coating to the inside of the rocker panels and other vulnerable areas.
Step 11: Maintaining Your New Rocker Panels
Once your new rocker panels are installed and painted, it’s important to take steps to maintain them and prevent future rust. Regular washing and waxing can help protect the paint and prevent corrosion. Inspect the rocker panels periodically for any signs of damage or rust. If you notice any issues, address them promptly to prevent them from spreading.
Step 12: Alternatives to Slip-on Rocker Panels
While slip-on rocker panels are a popular choice, there are other options for repairing rusted rocker panels. These include: (See Also: Will You Lose Low End With M4 Slip On Fz07 )
- Full Rocker Panel Replacement: This involves removing the entire rocker panel and welding in a new one. This is a more extensive repair but can be necessary for severe rust.
- Patch Panels: If only a small section of the rocker panel is rusted, you can use patch panels to repair the damaged area.
- Rust Repair with Body Filler: In some cases, you might be able to remove the rust, treat the area, and fill in the damage with body filler. However, this is generally not recommended for extensive rust.
Step 13: Choosing the Right Rocker Panels
When selecting slip-on rocker panels for your ’98 Sierra, consider the following:
- Material: Rocker panels are typically made of steel. Make sure the panels are made of high-quality steel that is resistant to rust.
- Fitment: Choose panels that are specifically designed for your ’98 Sierra. Ensure the panels fit properly and cover the damaged area.
- Thickness: Thicker panels will generally be more durable and resistant to damage.
- Finish: Some panels come with a primer finish, while others are bare metal. If the panels are bare metal, you’ll need to prime them before painting.
- Reviews: Read reviews from other customers to get an idea of the quality and fitment of the panels.
Step 14: Cost Considerations
The cost of installing slip-on rocker panels can vary depending on several factors, including:
- The cost of the rocker panels: The price of the panels will vary depending on the manufacturer, material, and quality.
- The cost of materials: You’ll need to purchase primer, paint, body filler, sandpaper, and other materials.
- The cost of tools: If you don’t already own the necessary tools, you’ll need to purchase or rent them.
- Labor costs: If you hire a professional to do the work, the labor costs can add significantly to the overall cost.
Installing the panels yourself will save you money on labor costs, but you’ll need to factor in the cost of the tools and materials. Overall, installing slip-on rocker panels is a relatively affordable way to address rust on your ’98 Sierra.
Step 15: Troubleshooting Common Issues
- Panel doesn’t fit correctly: Double-check that you have the correct panels for your truck. Make sure the panel is properly aligned before welding or securing it. You may need to make minor adjustments to the panel.
- Welding problems: If you’re having trouble welding, make sure your welder is set to the correct settings. Practice welding on scrap metal before working on your truck.
- Paint issues: If the paint is not adhering properly, make sure the surface is clean and properly primed. Apply thin, even coats of paint.
- Rust reappears: Make sure you remove all the rust before installing the new panel. Use a rust converter to treat any remaining rust. Apply a rust preventative coating to the inside of the rocker panels.
Step 16: Professional vs. Diy
Deciding whether to tackle this project yourself or hire a professional depends on your skill level, available tools, and budget. If you’re comfortable with basic automotive repairs and have access to the necessary tools (or are willing to rent/buy them), then this is a manageable DIY project. Welding experience is a significant advantage, but it’s not strictly required if you choose the non-welding method. If you’re not comfortable with any of the steps involved, or if the rust damage is extensive, it’s best to consult a professional body shop. A professional will have the experience, tools, and expertise to ensure a high-quality repair.
Conclusion
Installing slip-on rocker panels on your ’98 Sierra is a worthwhile project that can significantly improve the appearance and value of your truck. By following these steps and taking your time, you can effectively address rust and protect your vehicle from further damage. Remember to prioritize safety, use quality materials, and take pride in your work. With a little effort, you can restore your Sierra’s rocker panels and enjoy your truck for years to come.
This guide provides a comprehensive overview of the process. Remember to always consult the manufacturer’s instructions for any products you use. Good luck with your project, and enjoy the satisfaction of a job well done!
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