Overview This Hurst Universal tunnel patch is intended for fabricating a new tunnel when installing a Tremec TKO 5-speed transmission in most GM vehicles. The tunnel patch is constructed from 20-gauge cold rolled steel and is pre-rolled and tapered to accommodate most floor pans to fit a Tremec TKO 5-speed transmission. May fit many other vehicles and other transmissions. Note: Trimming and fabrication will be required when doing a transmission conversion. For Tremec TKO 5-speed transmission conversions. Trimming and fabrication will be required when doing a transmission conversion Features Intended for Tremec TKO 5-speed Conversions Universal Tunnel Patch for Most GM Vehicles May fit other Vehicles and Transmissions Over 60 Years of Conversion Experience Constructed from 20-gauge Cold Rolled Steel Simplifies Transmission Conversions Custom Designed TECHNICAL SPECS Length (In) 27.5