Direct-fit left-hand cab corner with extension for 1999–2016 Ford Super Duty trucks. This heavy-gauge steel replacement panel restores the damaged or rusted lower cab corner and cab-bottom extension to factory geometry, preserving door alignment and cab strength. Designed as a restoration-quality weld-in piece, it provides durable corrosion resistance when properly primed and sealed, making it ideal for repair shops and DIY restorations that require an OEM-style fit and long-term reliability.
Features:
- Fitment: 1999–2016 Ford Super Duty (left-hand cab corner with extension) — restores lower cab corner and cab-bottom area.
- Heavy-gauge stamped steel construction for structural strength and durability.
- Includes cab corner extension to repair rusted-in areas and maintain correct door gap and alignment.
- Weld-in design provides OEM-style fitment and long-lasting attachment when installed correctly.
- Corrosion-resistant when prepped, primed, and sealed; ideal for restoration and collision repair.
- Saves time over fabricating a patch panel and helps maintain vehicle value by restoring original geometry.
Installation / Application:
- Difficulty: 3/5
- Estimated time: 2–5 hours (depends on rust extent and finish work)
Instructions:
- Prepare vehicle: disconnect battery, remove trim/door sills as needed to access the damaged corner.
- Inspect and mark: measure and mark the scope of metal to be removed, checking for hidden rust in adjoining panels.
- Cut out damaged metal: use an angle grinder or spot-weld cutter to remove rusted or deformed sections back to clean metal.
- Clean and prep edges: grind to bare metal, remove rust, and treat with rust converter or metal prep solution.
- Test-fit the replacement panel: fit the cab corner and extension into place, trim as needed for accurate alignment.
- Clamp and tack: secure the panel with clamps, check gaps/fitment, and tack-weld at several points to hold position.
- Finish welding: complete stitch or continuous welds as appropriate, avoiding excessive heat to prevent warping.
- Grind and smooth seams: grind welds flush, feather edges, and ensure a smooth substrate for sealer and paint.
- Seal and protect: apply seam sealer to all joints, then prime with epoxy primer to prevent corrosion.
- Finish: apply paint to match vehicle color, reinstall removed trim and components, and torque any fasteners to spec.
About Redline Restomotive
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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 |
| Ford |
F-250 Super Duty |
1999 - 2016 |
SUPER DUTY SUPER CAB PICKUP |
| Ford |
F-350 Super Duty |
1999 - 2016 |
SUPER DUTY SUPER CAB PICKUP |