I was under the impression that my 2000 sahara 4.0 was a 3 speed auto, but I count 4 gears when i listen to it shift. 1- 0to10 2-10to25 3- 25 to 40 4-40 up.
roughly the speeds it shifts at. is it 3 gears with over drive or 4 speed auto, or same difference? haha just wonderin, this honestly makes me feel stupid