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Fox-Body Cobras
speedo gear change ?
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<blockquote data-quote="RydeOn" data-source="post: 8110786" data-attributes="member: 704"><p>That does not make it correct! Please do not pass misleading information on.</p><p></p><p>Im trying to recall how exactly how this went, because its been ages since Ive messed mine. But if I remember correctly the stock speedo drive gear is an 8 tooth. We have a black speedo cable gear in our cars, 20 tooth, stock. Look at the chart/parts list and you see that the 23 tooth speedo gear is the maximum they run and they are correct for 3.55s. Notice they are all 23 tooth for 3.55s, 3.73s and 4.10. This is because the gear ratios are too far out of range to be calibrated with the stock 8 tooth drive gear. The chart clearly shows that you need to drop to a 7 tooth to bring any rearend gears 3.73s into correctable range by using the appropriate speedo gear. By using your same black 20 tooth and just changing from an 8 to 7 tooth drive gear your calibration goes from 3.08 to 3.55s. That is a significant difference. Much more than 1mph as was previously mentioned, more like 4-6mph, and thousands of miles extra per years owned. </p><p></p><p>..And this should be factually correct, if anyone would like to verify please do and correct me if I am wrong. What you do on your car is up to you, but lets base this off of facts rather than what other people are doing with their cars. I have seen too many cobra adds with the text "<em>car says 35k on the odometer but really has under 28k since i reageared</em>". Sure it does bud, "next".</p></blockquote><p></p>
[QUOTE="RydeOn, post: 8110786, member: 704"] That does not make it correct! Please do not pass misleading information on. Im trying to recall how exactly how this went, because its been ages since Ive messed mine. But if I remember correctly the stock speedo drive gear is an 8 tooth. We have a black speedo cable gear in our cars, 20 tooth, stock. Look at the chart/parts list and you see that the 23 tooth speedo gear is the maximum they run and they are correct for 3.55s. Notice they are all 23 tooth for 3.55s, 3.73s and 4.10. This is because the gear ratios are too far out of range to be calibrated with the stock 8 tooth drive gear. The chart clearly shows that you need to drop to a 7 tooth to bring any rearend gears 3.73s into correctable range by using the appropriate speedo gear. By using your same black 20 tooth and just changing from an 8 to 7 tooth drive gear your calibration goes from 3.08 to 3.55s. That is a significant difference. Much more than 1mph as was previously mentioned, more like 4-6mph, and thousands of miles extra per years owned. ..And this should be factually correct, if anyone would like to verify please do and correct me if I am wrong. What you do on your car is up to you, but lets base this off of facts rather than what other people are doing with their cars. I have seen too many cobra adds with the text "[I]car says 35k on the odometer but really has under 28k since i reageared[/I]". Sure it does bud, "next". [/QUOTE]
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speedo gear change ?
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