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I have a 21 tooth right now with my 4.10's (parts guy at ford said I needed the 21 tooth for 4.10's) and my speedo is off slightly. Anywho, I need a 23 tooth to make the speedo correct right?


-Derrick-
 

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derrick, if you can find a 23 tooth gear, the teeth will be so thin it wont last long. Time to look into a speedcal box.
 

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thanks for that website. But what about '94-95 AODE's?? Are they the same as the '93 and earlier AODs for the drive gear tooth?? An AOD is an 8 tooth and the 4R70W's are the 7 tooth but what about the AODE? 8 tooth?

Clay
 

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Yes, AODEs in Vics and Stangs use the same output shaft as the AOD (8 tooth), though instead of running a governor on the end they have a small dowel and a metal sleeve that slips over it to block the fluid hole. Most 4R70W's don't have this, and likely their owners have no idea what I'm talking about. lol.
 
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