Overview The Hurst Universal tunnel patch is large enough for installing a most transmissions, including a Tremec Magnum 6-speed transmission in just about any vehicle. The universal tunnel patch is constructed from 20-gauge cold rolled steel and is pre-rolled and tapered to accommodate most floor pans. As with most transmission conversions, trimming and fabrication will be required. For large transmissions including a Tremec Magnum 6-speed transmission. Trimming and fabrication will be required when doing a transmission conversion Features Fits Large Transmissions including a Tremec Magnum 6-speed Over 60 Years of Conversion Experience Tunnel Patch for Universal Applications Constructed from 20-gauge Cold Rolled Steel Simplifies Transmission Conversions TECHNICAL SPECS Length (In) 35 Width (in) 22