1982 C3 Automatic Transmission TBW Cooling Lines 700R4
The final year of the C3 introduced the 700R4 automatic transmission, offering overdrive capability—but also introducing new routing requirements for transmission cooling. These OE-style Tin Bundy Weld (TBW) steel cooling lines are engineered to fit 1982 Corvettes with the 350ci small block and 700R4 automatic, restoring proper fluid circulation from the radiator to the transmission. Pre-bent to match original GM specifications, these lines eliminate the risk of internal corrosion, kinked bends, and performance loss associated with aging factory tubing.
Features
• Correct for 1982 C3 Corvettes with 350ci engine and 700R4 automatic transmission
• OE-style Tin Bundy Weld (TBW) construction resists rust and fatigue
• Pre-bent to factory routing for radiator-to-transmission fitment
• Supports proper ATF circulation and cooling efficiency
• Designed to preserve drivetrain reliability and shift quality
• Direct-fit, bolt-in replacement—no cutting or bending required
Tech Notes
Tin Bundy Weld (TBW) lines were used by GM as factory equipment. Their brazed-seam construction offers smooth internal surfaces, corrosion resistance, and better flexibility—ideal for long underbody routing on late-model C3s with the 700R4.
Because Details Matter
The right transmission line doesn’t just move fluid—it safeguards one of your C3’s most important drivetrain upgrades. These TBW lines ensure your 700R4 performs the way Chevrolet intended, from the first mile to the last.
Installation Note
For proper routing and frame attachment, we recommend pairing with our factory-style line clip set. Be prepared with line wrenches, a catch pan, and fresh ATF before installation.
Also known under these part numbers: (For reference only)