I Though I'd change out the transmission fluid on my xj6 today but once I got underneath I couldn't find the drain plug on the pan. I know that on the old ones it was an allen screw right in the middle of the pan, and this pan looks exactly the same as the old ones just not drain plug.... do you drain from the Where the dipstick filler tube meets the pan? or is there another more sensible location i'm just not seeing?