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.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 Application: Year Make Model Submodel Engine Size Universal Specs: Brand Hurst California Proposition 65 Chemical Name Chromium (hexavalent compounds) California Proposition 65 Required Yes Color Natural Emission Code 5 Finish Raw Item Grade Premium Replacement Length (in) 35 Material Steel Panel Position Transmission Tunnel Product Type Floor Pan Patch Panel Thickness .0359 inch Warning California Proposition 65 Width (in) 22