{"product_id":"ecotric-rocker-panels-cab-corners-for-1999-2007-chevy-silverado-gmc-sierra-4-door-extended-cab-2-pack-galvanized-steel","title":"ECOTRIC Rocker Panels \u0026 Cab Corners for 1999–2007 Chevy Silverado \/ GMC Sierra 4-Door Extended Cab — 2-Pack, Galvanized Steel","description":"\u003cp\u003e\u003cstrong\u003eECOTRIC's slip-on outer rocker panels and cab corners replace rusted lower body sections on 1999–2007 Chevy Silverado and GMC Sierra 4-door extended cab trucks, restoring structure and curb appeal.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your extended-cab Silverado or Sierra shows corrosion, denting, or missing lower trim around the doors and cab corners, these direct-replacement steel assemblies are designed to bring the truck back to a finished, protected look. Sold as two packages (each containing left and right outer rocker panels plus cab corners), the parts are engineered for slip-on installation without cutting or major modification. Galvanized and electrophoresis-coated surfaces resist everyday wear while reinforcing the lower body against chips and impact damage.\u003c\/p\u003e\n\n\u003ch3\u003eWill these rocker panels and cab corners fit my truck model?\u003c\/h3\u003e\n\u003cp\u003eThese replacement pieces target a specific range of GM models and years; confirm your year and cab type before purchasing. They are built for 4-door extended cab trucks and replace several OEM part numbers used on classic Silverado and Sierra models.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with 1999–2006 Chevrolet\/GMC Silverado and Sierra 1500.\u003c\/li\u003e\n  \u003cli\u003eCompatible with 2000–2004 Chevrolet\/GMC Silverado and Sierra 2500.\u003c\/li\u003e\n  \u003cli\u003eCompatible with 2001–2006 Chevrolet\/GMC Silverado and Sierra 2500 HD and 3500.\u003c\/li\u003e\n  \u003cli\u003eCompatible with 2007 Chevrolet\/GMC Silverado and Sierra 1500\/2500 HD\/3500 Classic.\u003c\/li\u003e\n  \u003cli\u003eOnly fits 4-door extended cab body style; replaces OEM 0856-001, 0856-002, 0856-115, 0856-116.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what hardware is required?\u003c\/h3\u003e\n\u003cp\u003eInstallation is intended to be straightforward thanks to the slip-on design: the rocker panels and cab corners slide into place without cutting or reshaping the outer body. Mounting hardware is not included, so plan to source bolts, clips, or rivets that match your truck's original fasteners for secure attachment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSlip-on fit means no drilling or major body modification required.\u003c\/li\u003e\n  \u003cli\u003eMounting hardware must be purchased separately to match factory attachment points.\u003c\/li\u003e\n  \u003cli\u003eBasic hand tools and, optionally, a helping hand or jack stands recommended for alignment.\u003c\/li\u003e\n  \u003cli\u003eSurface prep (cleaning and rust inhibitor) improves longevity before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the materials and durability features?\u003c\/h3\u003e\n\u003cp\u003eThese replacement panels are fabricated from durable steel and finished to resist corrosion in everyday use. The combination of galvanization and electrophoretic coating helps protect the surface from chips, moisture, and salt, extending the life of the repair compared with untreated sheet metal.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHeavy-gauge steel offers structural reinforcement to the lower body area.\u003c\/li\u003e\n  \u003cli\u003eGalvanized surface reduces rust development under typical road conditions.\u003c\/li\u003e\n  \u003cli\u003eElectrophoresis coating provides an even protective film for longer service life.\u003c\/li\u003e\n  \u003cli\u003eDesigned to hide unsightly damage and restore a clean outer profile.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the box and what should I prepare for installation?\u003c\/h3\u003e\n\u003cp\u003eThe set ships as two packages covering both sides of the truck: each pack includes an outer rocker panel and a matching cab corner for left and right installation. Hardware is excluded, so gather fasteners and any seam sealer you prefer ahead of time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes: 2 × outer rocker panels and 2 × cab corners (left and right overall).\u003c\/li\u003e\n  \u003cli\u003eMounting hardware and finish paint are not included.\u003c\/li\u003e\n  \u003cli\u003eRecommended prep: remove rust, clean surfaces, use rust inhibitor, and align panels before fastening.\u003c\/li\u003e\n  \u003cli\u003eFinish with paint or undercoating to match your truck after installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: These replacement rocker panels and cab corners are for owners of 1999–2007 Chevy Silverado or GMC Sierra extended-cab trucks who want a cost-effective way to repair lower-body rust, restore factory appearance, and reinforce the cab underside. They suit DIY mechanics with basic tools as well as professional body shops restoring classic GM pickups that require direct-replacement components without body modification.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these panels fit a 2003 Silverado extended cab?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. They fit 2000–2004 Silverado\/Sierra 2500 and 1999–2006 Silverado\/Sierra 1500 extended cabs; confirm your cab is the 4-door extended model.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is drilling required to install the slip-on rocker panels?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No major drilling or cutting is required for the slip-on fit, but you will need to supply mounting hardware and basic tools.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ECOTRIC","offers":[{"title":"Default Title","offer_id":48082854543518,"sku":"B07JHYKJY4","price":125.89,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/ecotric-front-packaging-view.jpg?v=1785816512","url":"https:\/\/northtrailauto.ca\/products\/ecotric-rocker-panels-cab-corners-for-1999-2007-chevy-silverado-gmc-sierra-4-door-extended-cab-2-pack-galvanized-steel","provider":"North Trail Auto","version":"1.0","type":"link"}