I've been searching, but everything I'm finding has to deal with 4L60's. Can I use the stock pan and buy a drain plug kit to install a drain plug? I have a digital tranny gauge that I want to install in the pan itself. Will it thread into the drain plug hole or will I need to do something else? Does anyone make a new pan with the plug already in it? Where's the best place to drill the hole if I buy the kit?

Thanks guys.