AOD shifts hard into OD
I just bought this truck so I have no history of it.
The transmission i'm sure is an AOD. It shifts pretty hard into overdrive and at lower speeds (in the OD range tho) it wont shift into OD until i let up on the throttle, even if I am only lightly on the pedal. This is costing me gas mileage, although it might be normal IDK.
I know the hard shifting is not normal tho. All other shifts and functions are fine.
Any idea what I need to do? Could it be that the rear tires are not stock sized?