Oil Problems

I have a massive oil leak on my 1982 88. I havent had a chance to get under the car to see exactly what the problem is but I think that I need to replace the oil pan gasket or the oil pan itself. If I get a gasket should I get a cork one or a cork-ply one? Also, where is the best place to buy parts for older 88's, mainly an oil pan?
Thanks

I also own an 82 88 the oil problem you have is more than likely your oil pan gasket. cork is definatly the best way to go i changed mine 4 years ago and have no problems yet. You might also want to have your front and rear main seals checked if they have not been replaced then that might be a cause for the big oil leak.