Slip-On Rocker Panels & Cab Corners for 1999-2007 Silverado Sierra Extended Cab
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
- Chevrolet Silverado 1500 Extended Cab (1999-2007 Classic body)
- Chevrolet Silverado 2500 Extended Cab (1999-2007 Classic body)
- Chevrolet Silverado 3500 Extended Cab (1999-2007 Classic body)
- GMC Sierra 1500 Extended Cab (1999-2007 Classic body)
- GMC Sierra 2500 Extended Cab (1999-2007 Classic body)
- GMC Sierra 3500 Extended Cab (1999-2007 Classic body)
Product Overview
Road salt and trapped moisture often eat these trucks from the inside out, leaving soft rocker skins and rusted cab corners even when the truck still works every day. This set gives a body technician replacement outer sections for a cleaner, stronger-looking repair.
Slip-on panels cover the outer area; they do not restore rotten inner structure by themselves. Cut back weak metal, inspect cab supports and inner rockers, treat hidden rust, and weld or fasten the panels using proper body-repair methods.
This is an aftermarket replacement part and is not manufactured or supplied by the original equipment brand.
Key Features & Performance
- Left and right slip-on outer rocker panels
- Matching cab-corner repair sections
- For extended-cab Silverado and Sierra body styles
- Useful for rust repair, collision repair, or body restoration
Common Uses
- Covering rusted outer rocker skins
- Replacing damaged cab corners
- Restoring the lower body before paint
- Repairing work-truck body damage while preserving usable inner structure
Technical Specifications
- Product Type: Slip-on rocker panel and cab-corner repair set
- Cab Style: Extended Cab
- Body Generation: 1999-2007 Classic style
- Position: Left and right lower body
Installation & Fitment
- Confirm cab style and Classic-body year before cutting
- Remove paint and inspect inner rocker, floor edge, and cab mounts
- Cut out loose rust rather than sealing active corrosion underneath
- Test-fit door and body gaps before final attachment
- Prime, seam-seal, protect cavities, and paint all repaired surfaces
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown. Model names alone may not guarantee fitment. Compare the original component, reference number, connector or mounting design, dimensions, and any serial-number or production-date break before purchase.
Frequently Asked Questions
Q: Do slip-on panels fix structural rust? A: No. Rotten inner rockers, floor supports, or cab mounts require separate structural repair.
Q: Do they fit crew-cab trucks? A: No. This listing is for extended-cab body dimensions.
Q: What does 2007 Classic mean? A: Some 2007 trucks use the older 1999-2006 body shape; the newer body uses different panels.
Part Summary
keywords: Silverado extended cab rocker panels, Sierra cab corner repair, 1999 Chevy rust cover, 2007 Classic slip on rocker, truck lower body restoration, Silverado outer rocker kit
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.