I got an aluminum pan on eBay Polished, finned, with a drain plug Allen bolts and gasket included Less than $50 No more leaks I did have to modify the floor shifter slightly because of the thickness of the aluminum Has a nice thick flange http://www.ebay.com/itm/GM-400-Turb...ies&vxp=mtr&hash=item588721379f#ht_3451wt_951
It came with a rubber gasket, not cork Knock on wood.. Iv had no leaks from the pan (My shifter and speedo housing drip a bit though)