Twas wondering if this would be possible for a 07 3.5 gt??? I have the 4spd auto right now but in the future i would love to swap it out with the f40 from a gxp MT???? Would the f40 mate to the 3.5 engine properly or is my dream of an auto to mt just going to be a fantasy? I found a f40 with 219 miles on it at the junkyard for $550???