They are the gaskets that Ray Barton sells on his website. The entire oil pan rail and rear main are leaking. Everything is brand new but I'll check for flatness. I'm also considering buying the oil pan support braces that mancini sells to help with the sealing as well.

1973 Cuda 528 all aluminum Hemi, 4 speed, 3.23 Sure-Grip, (JA5) Silver Frost Metallic 1973 Challenger Rallye 340 1985 W150 Power Ram prospector 1986 Camaro IROC-Z 305 tpi