The RustBuster over-the-axle frame repair kit for 2003–2014 Toyota 4Runner and FJ Cruiser is a left-side panel intended to replace corroded frame behind the rear axle. Matched to those model years and platforms, it restores the over-axle rail to maintain suspension geometry and rear support where the original rail has failed.
Rust Buster 2003-2014 Toyota 4Runner and FJ Cruiser Over-the-Axle Frame Repair Kit - Left