I see your point, I also have your problem with a drive way that approaches 34 deg with a boat to back up it roughly 1.5t, but i must admit i blew the auto in my fathers falcon au ute, and the adventra wagon auto trans was showing problems aswell, the Prado manual diesel does it standing on it head in low range with the clutch fully out. i agree and think autos are better in 4wds, but as for the average car i think the autos are to weak when pushed hard.
(the ford auto blew, after inspection that the pump is at the back of the trans and ran dry because of the angle of the driveway.)
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