Speedo Correction Gear Size?
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Senior Member
Joined: May 2000
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Speedo Correction Gear Size?
Does anyone know how to find out what size gear I will need for my trans to correct my speedometer (I have the 1997 which still used the gear in the transmission for the speedo). I will have 4.10 gears and 275/65-17 tires?
See signature below if that helps.
See signature below if that helps.
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Joined: Nov 1998
Posts: 59
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From: Rome,Ga,USA
According to the chart at http://www.finer.com/Internet/pages/speedo.htm
you need a 21 tooth gear. It is part number DOOZ17271B. I just bought one and it is the purple gear. Total cost was 6.86.
you need a 21 tooth gear. It is part number DOOZ17271B. I just bought one and it is the purple gear. Total cost was 6.86.
Thread Starter
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Senior Member
Joined: May 2000
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Thanks GeneKend, my local Ford is not the most user friendly. I like to know what I am looking for when I go...
How do you know how many teeth on the transmission drive??
How do you know how many teeth on the transmission drive??
Last edited by WLF; Jan 26, 2002 at 08:43 PM.
Member
Joined: Nov 1998
Posts: 59
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From: Rome,Ga,USA
According to the calculator at http://www.finer.com/Internet/pages/speedo.htm you need a 22 tooth gear which I don't think they make. You might try a 21 tooth it might be close.