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| what speedo gear do i need with 2.45 gears? https://slantsix.org/forum/viewtopic.php?t=15416 |
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| Author: | casedawg [ Thu Dec 15, 2005 8:25 pm ] |
| Post subject: | what speedo gear do i need with 2.45 gears? |
i have 2.45 gears in my car right now. my tires are either 245/60/15 or 225/60/15. i found a chart that gave gear numbers but it only went down to 2.76. does anyone know of an equation i can use to find out what i need lower than that, or am i just going to have to live with an inaccurate speedo? thanks for your help. casey |
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| Author: | Pierre [ Thu Dec 15, 2005 10:34 pm ] |
| Post subject: | |
http://www.moparts.com/Tech/tech/pages/speedo.html Has an excel spreadsheet that will calculate the # of teeth needed on pinion. |
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| Author: | Doctor Dodge [ Fri Dec 16, 2005 4:57 am ] |
| Post subject: | |
Depending on the tooth count needed, you may also need a different speedo gear holder (housing). The low (number) ratio speedo gears got so small that a special offset holder was used. DD |
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| Author: | Guest [ Fri Dec 16, 2005 5:12 pm ] |
| Post subject: | |
thanks, that was very handy. where can i get those low number gear housings? i think i am going to need a 25 tooth gear. are they something i can just have a parts store order for me? thanks for your help. casey |
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