The Dedenbear Transmission Pan is a rugged one-piece pan that fits like stock yet with better heat dissipation than a cast aluminum pan. It has seamless rounded corners to prevent cracks and leaks. The pan rail has turned-down lips and raised beads to improve the seal and reduce distortion. Dedenbear's Transmission pan is Formed from .125" thick 6061 aluminum. A satin finish is easily polished if desired.