What do you need to do to beef up an auto tranny so it will hold up to about 400HP? I tow very little, use the truck for work. see lots of people say Valve Bodies and TC but is that it? or is that just a bandaid? don't mind spending$$$ as long as its going hold up but like anyone don't want to pay big$$$ if you don't have to. planning on working tranny over in about 6 mos. anyways. getting a little notchy and slipping. I am a fairly conservative driver but when I want or need the power I don't want my tranny to take a dump!

Thanx
Clay