1963-1967 C2 Powerglide Transmission Cooling Line TBW
Protect your Powerglide transmission from overheating and restore factory routing with this OE-style Tin Bundy Weld (TBW) transmission cooling line set for 1963–1967 Corvettes. These steel lines run from the radiator to the transmission, circulating transmission fluid through the cooler to maintain proper operating temperature. Reproduced with correct bend specifications, these TBW lines match original GM engineering and resist rust, vibration fatigue, and deformation over time. Whether you're restoring a survivor or building a show-ready driver, these lines are a vital part of drivetrain preservation.
Features
• Correct for 1963–1967 C2 Corvettes with Powerglide automatic transmission
• Replaces both transmission cooler lines from radiator to transmission
• Manufactured using OE-style Tin Bundy Weld (TBW) construction
• Pre-bent to factory specs for direct installation
• Designed for proper fluid circulation and thermal regulation
• Steel lines offer long-term durability and corrosion resistance
Tech Notes
Tin Bundy Weld (TBW) tubing was used by GM as original equipment for both fuel and transmission lines. The brazing process creates smooth internal surfaces and added corrosion resistance, reducing brittleness while preserving flexibility—especially important for vibration-prone underbody routing on Corvettes.
Because Details Matter
Transmission cooling isn’t just about performance—it’s about longevity. These TBW cooling lines restore the original function and routing your Corvette was built with—now ready for another generation of cruising.
Installation Note
We recommend pairing these transmission lines with our factory-style line clips to ensure secure and accurate frame mounting. Replacing clips at the time of installation helps preserve correct routing and prevents premature wear caused by vibration.
Also known under these part numbers: (For reference only)