American Powertrain Transmission Tunnel Humps And Patches For Easy Modern Transmission Conversions

American Powertrain Transmission Tunnel Humps and Patches are designed to simplify modern transmission swaps by providing additional clearance and eliminating the hassle of locating hard-to-find factory humps. Manufactured in the USA from durable 100% gel-coated fiberglass, these transmission tunnel components offer a lightweight, corrosion-resistant solution for custom builds, restorations, and performance truck or muscle car projects. Ideal for accommodating larger manual and overdrive transmissions, the raised tunnel design helps improve fitment while maintaining a clean, professional appearance during installation. Built for strength, easy trimming, and custom fabrication, American Powertrain Transmission Tunnel Humps and Patches are an excellent upgrade for builders needing reliable transmission clearance and restoration-friendly installation solutions.