The 1970-1981 Camaro / Firebird Left (Torque Box) Under Rear Seat Brace is a structural reinforcement panel engineered to restore rigidity and strength to the chassis beneath the rear seat area. Often referred to as the torque box, this component links the floor pan to the frame rails and helps distribute load and suspension forces. Commonly rusted or damaged on second-generation F-body models, this brace is stamped from heavy-gauge steel and designed to match original factory contours and mounting points. It’s a must-have part for structural restoration, especially in high-performance or full-frame repair applications.
Installation:
Difficulty: 5/5 – Requires cutting, welding, and floor structure alignment.
Instructions: Raise the vehicle and secure safely. Remove damaged or rusted brace by cutting or drilling spot welds. Clean and prep surrounding metal. Test fit new brace beneath rear seat area, ensuring alignment with factory reference points. Weld securely in place, grind smooth, and finish with seam sealer and protective coatings.
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| Make | Model | Years |
| Chevrolet | Camaro | 1970 - 1981 |
| Pontiac | Firebird | 1970 - 1981 |
