This left-hand OE-style rocker panel is a direct-fit replacement for 2014-2018 Chevy extended cab trucks, engineered to restore the lower bodyline and structural integrity where corrosion or collision damage has occurred. Designed to protect the rocker area from road debris and moisture, it helps prevent further rust and returns the truck to factory alignment and appearance. Constructed for durability and reliable fitment, it simplifies restoration and maintenance projects while delivering long-term service life.
Features:
- Fits 2014-2018 Chevrolet extended cab trucks — left-hand (driver side) OE-style rocker panel.
- Heavy-gauge construction with a corrosion-resistant finish for long-lasting protection.
- Restores structural support and factory alignment to the lower body sill area.
- Protects against road debris, salt, and moisture to help prevent future rust.
- OE-style design for straightforward fitment during restoration or replacement projects.
- Can be finished and painted to match original factory appearance.
Installation / Application:
- Difficulty: 4/5
- Estimated time: 2-6 hours (varies with experience and extent of corrosion)
Instructions:
- Prepare vehicle: park on level surface, disconnect battery, raise and support vehicle securely, and remove door sill trim and interior trim as needed to access the panel area.
- Assess and mark: inspect the existing rocker panel and mark cut lines to remove only the rusted or damaged metal while preserving solid substrate.
- Cut out damaged panel: use an angle grinder or cutoff tool to carefully remove the corroded section, keeping the cut edge clean and square for fitment.
- Clean and prepare mating surfaces: grind back to bare metal, remove rust, and treat edges with rust converter or etch primer for corrosion protection.
- Test-fit new panel: align the replacement rocker panel and clamp into position, checking gaps and alignment with the door, fender, and sill.
- Fasten the panel: use plug-welds or spot welds along the seam at recommended intervals (commonly every 2–4 inches) or follow vehicle-specific attachment method. If welding is not possible, consult vehicle-specific instructions for mechanical fasteners and seam bonding alternatives.
- Finish welds and seams: grind welds flush, dress seams, and apply seam sealer to all exposed joints to prevent moisture intrusion.
- Body prep and paint: apply primer, block-sand as needed, apply body filler for tool marks, then prime and paint to match factory finish.
- Reinstall trim: once paint has cured, reinstall any removed interior and exterior trim, lower the vehicle, reconnect the battery, and verify fit and finish.
- Final inspection: check for secure attachment, even gaps, and proper corrosion protection. Seek professional help if structural welding or alignment issues are encountered.
About Redline Restomotive
Redline Restomotive® has established itself as a premier brand in the world of classic car restoration, providing enthusiasts with high-quality parts that meet the exacting standards of original manufacturer specifications. Dedicated to the preservation of American automotive history, Redline Restomotive® combines advanced manufacturing techniques with an in-depth understanding of vintage vehicles. The result is a range of products that seamlessly blend into the design and function of classic cars, giving restorers and collectors the assurance that each part reflects the era’s style, quality, and performance.
Crafted for both durability and aesthetic accuracy, Redline Restomotive® parts are ideal for those who value authenticity in their restoration projects. Whether restoring a car for display, personal enjoyment, or roadworthiness, customers rely on Redline Restomotive® for parts that not only fit perfectly but also contribute to the overall integrity and longevity of the vehicle. Each item is carefully engineered to replicate the fit, finish, and functionality of original components, making Redline Restomotive® a trusted name in restoration circles.
The extensive product catalog from Redline Restomotive® covers a wide variety of categories, allowing classic car owners to source everything from essential mechanical parts to subtle interior details. This comprehensive approach enables a cohesive restoration experience, where customers can confidently maintain both the exterior and interior authenticity of their vehicles. With Redline Restomotive®, every detail matters, providing the perfect balance between innovation and tradition for classic car preservation.
For more information or to explore their product offerings, you can visit retailers such as Muscle Cars & Classics, which feature a comprehensive selection of Redline Restomotive® products.

Vehicle Fitment:
The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
| Make |
Model |
Years |
Fitment Notes |
| Chevrolet |
Silverado 1500 |
2014 - 2018 |
SILVERADO EXTENDED CAB PICKUP |
| Chevrolet |
Silverado 2500 HD |
2014 - 2018 |
SILVERADO EXTENDED CAB PICKUP |
| Chevrolet |
Silverado 2500 |
2014 - 2018 |
SILVERADO EXTENDED CAB PICKUP |
| Chevrolet |
Silverado 3500 HD |
2014 - 2018 |
SILVERADO EXTENDED CAB PICKUP |
| Chevrolet |
Silverado 3500 |
2015 - 2018 |
SILVERADO EXTENDED CAB PICKUP |
| GMC |
Sierra |
2014 - 2018 |
EXTENDED CAB PICKUP |