That's a good idea, I'll try it! maybe i'll go one further and get a tap the same size & cut new threads. And, yes am going to flatten the pan, some spots are not flat any more. and will put a bit of seal around the bolt holes.
Thank You!
What do you think about that filter? it bolted up fine, and the gasket(s) are 727 and 904,(got both) Think it's made for the next gen. trans with the overdrive? (forgot what # they are...518's i think), I can't imagine it causing an issue, but i'm no engineer. I'm thinking larger filter surface might be a good thing.