Rust Buster Over Axle Frame Section For 2007-2021 Toyota Tundra RB8634
RB8634R- Fits 2007-2021 Toyota Tundra
- Fits 6.5" Bed Only
- Caps the Frame Rail over the rear axle
- Measures 33.65" in length
- Includes Class 10.9 Hardware for Bump Stop
- Includes perforations for shock mount and front bed mount to cut around if not removing
- Includes matching OE holes for a precise fit
- Made from Heavy Duty 11 Gauge Steel
- Ships with an Oil protective coating to prevent Oxidation during transit
- Welding required
- Protect with Rust Buster Rust Converter Paint RB9917
- Backed by our Lifetime Warranty
Rust Buster frame repair kits are engineered as a safe, proven alternative to full frame replacement—restoring structural integrity without compromising vehicle geometry or OE mounting points. Each section is precision-designed to reinforce known failure areas while integrating seamlessly with the original frame, ensuring proper alignment, predictable installation, and long-term durability. This approach allows you to repair only what’s compromised, reduce downtime and cost, and keep your truck on the road with confidence. Backed by decades of engineering experience, every Rust Buster frame component is built to meet real-world demands and is supported by our Lifetime Warranty. Â
Installation Instructions
Dowloadable PDF: RBxxxx
Inventory Last Updated: Sep 27, 2026