How can I tell is my vehicle has an overdrive drum speed sensor?

1997 FORD EXPLORER
241,200 MILES • 6 CYL • 4WD • AUTOMATIC
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JASONLANTZ1
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how do you tell if the transmission has an overdrive drum speed sensor in it or not? i am looking to buy a transmission because my transmission is going out and i need to know this before i get one. any help would be great. thank you.
Jan 7, 2009 at 8:49 PM
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JGAROFALO
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  • 489 POSTS
If the transmission has a large switch with a multi-wire connector on the left side where the shift linkage enters the case, you will also have several other connectors, and an O/D drum speed sensor. If not, it will be the older A4LD transmission , which does not have that sensor.
Jan 8, 2009 at 2:28 PM
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KEVIN BRAMLETT
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So you are saying that if I have a bunch of wires rite where the shift linkage is on the transmission, then I have a overdrive drum sensor ?? I have searched and searched for this sensor on my truck.
Jan 20, 2021 at 4:03 AM
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ASEMASTER6371
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Good afternoon,

I attached a picture for you of the available transmissions offered for the year of your truck.

https://www.2carpros.com/articles/automatic-transmission-problems

If you have the 5R55, you have that sensor. If you do not have that transmission, then no, you do not have that sensor.

Roy
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Jan 20, 2021 at 2:51 PM