1957-1962 C1 Seat Belt Inner Left Underbody Reinforcement 3782347 - OEM Number(s) (3782347)
Restore critical seat belt mounting strength on your C1 Corvette with this reproduction LH inner seat belt underbody reinforcement. Designed for 1957–1962 Corvettes equipped with factory seat belts, this stamped steel plate rivets to the fiberglass floorboard and provides a rigid anchor point for the inner belt mount.
This version includes the welded-in seat belt stud as found on later C1s with OEM belt setups. Whether you’re installing belts on an unrestored body or correcting a previous patch job, this reinforcement ensures the structural integrity needed to keep your restoration authentic and safe.
Features
• Reproduction of GM 3782347 for 1957–1962 C1s with seat belts
• Stamped steel reinforcement installs to LH inner seat area
• Includes threaded stud to accept inner seat belt anchor
• Rivets to underbody to strengthen floor for belt mounting
• Factory-correct fitment and layout for driver-side installation
Dimensions and Weight
• Fits: 1957–1962 Corvette
• Side: Left Hand (Driver Side)
• Sold individually
Because Details Matter
Whether you’re pursuing NCRS-level accuracy or simply reinforcing your C1’s underbody, this plate provides the proper support and factory styling to keep your interior safe and secure. Don't compromise safety or appearance—install the right piece the first time.
Also known under these part numbers: (For reference only)