The RustBuster over-axle frame repair kit for 2007–2018 Chevy Silverado and GMC Sierra is a right-side replacement panel intended to repair corrosion behind the rear axle. Specified for the listed years, it helps return the frame rail to serviceable condition so suspension alignment and bed support points remain correct after repair.
Rust Buster 07-18 Chevy Silverado/GMC Sierra Over Axle Frame Repair Kit - Right