ATP makes a heavier and better pan than Dorman for the 4R70W transmission.The 2V gets the about-two-threads plugs that just blow out.
I'm the leader of the Dorman Sucks Club, but the 4R70 pan is nice for the drain plug. Have one on my wife's '08 and my '07 and my non-profit's '03 and have installed several on customers' vehicles.