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Anytime you don't want the transmission to shift into overdrive

* if you are towing something , or if you are driving in hilly country where the

transmission is constantly shifting between drive and overdrive , you can use

the button on the end of the gearshift lever on your 1998 Ford Expedition to

shut off the overdrive ( the word OFF will light up on the end of your gearshift

lever )

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11y ago

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