ECOTRIC Cab Corner Replacement Panels for 1999–2007 Chevy Silverado / GMC Sierra Extended Cab — Steel, E-Coat Pair

ECOTRIC Cab Corners are a direct-fit left and right steel replacement pair designed to restore and protect the lower rear corners of 1999–2007 Chevy Silverado and GMC Sierra extended-cab trucks. If your truck’s cab corners are rusted, dented, or missing, these replacement panels provide a straightforward way to return the rear lower cabin area to factory-like appearance and protection. Built from robust steel with an electrophoretic surface finish, the pair installs without major modifications and is intended for 4-door extended cab models, matching OE fit and mounting locations for a clean swap.

Will these cab corners fit my specific Silverado or Sierra model?

Yes — the ECOTRIC pair was engineered for extended-cab configurations across multiple model years. Confirm your truck year and cab style before ordering to ensure correct compatibility.

• Fits 1999–2006 Chevy Silverado/GMC Sierra 1500 extended cabs
• Fits 2000–2004 Chevy Silverado/GMC Sierra 2500 extended cabs
• Fits 2001–2006 Silverado/GMC Sierra 2500 HD and 3500 extended cabs
• Fits 2007 Silverado/GMC Sierra 1500/2500 HD/3500 Classic extended cabs

How durable are these replacement corners and what finishes do they use?

The panels are formed from heavy-gauge steel to resist impact and structural wear. An electrophoretic coating is applied to the surface to enhance corrosion resistance and provide a base suitable for paint, helping them last through daily exposure and road conditions.

• Heavy-duty steel construction for strength and rigidity
• Electrophoretic (e-coat) finish for improved rust protection
• Paintable surface for color-matching to your truck
• Designed to handle common road and weather exposure

How easy is installation — do I need special tools or modifications?

Installation is intended as a direct replacement for the factory cab corners on compatible 4-door extended cabs, so extensive modifications are typically unnecessary. Mounting hardware is not included, and basic tools and rust-penetrant are commonly used during removal and installation to achieve a clean fit.

• Direct-replacement design matches OE mounting points (for part numbers 0856-115, 0856-116)
• No major drilling or panel modification expected
• Mounting hardware must be sourced separately
• Surface prep and paint recommended for finish longevity

What problems do these cab corners solve for truck owners?

Replacing damaged cab corners restores a truck’s appearance and helps shield the underside of the cabin from further harm. Swapping in new panels prevents ongoing body deterioration from rust, impacts, and road debris while improving resale appearance.

• Covers existing rust and dents at the lower rear cabin edge
• Prevents moisture and debris intrusion that accelerate corrosion
• Restores straight, factory-aligned body lines for a cleaner look
• Sold as a left-and-right pair to ensure consistent repairs

This ECOTRIC replacement set includes two cab corners (left and right). They are designed for 4-door extended-cab Chevy/GMC trucks within the listed year ranges and replace specific OE part numbers, making them suitable for owners who want a durable, paintable panel to restore bodywork without a full cab replacement. If you need hardware or a color match, plan to obtain fasteners and primer/paint separately before installation.

FAQ

Q: Do these cab corners need drilling to install?

A: They are direct-replacement panels designed to match OE mounting points, so drilling is usually not required; hardware is not included.

Q: Can I paint these to match my truck?

A: Yes. The electrophoretic finish accepts primer and paint, allowing you to color-match after proper surface prep.