speedo gear - MustangForums.com

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speedo gear

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Old 11-25-2007, 10:54 PM
  #1  
FuzzyDiceRule
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Default speedo gear

i have a 1992 GT with the T-5 and 3.73 gears, how many tooth speedo do i need? i was looking at a chart, and it showed like 79-89 w/ t-5 and 3.73s was a 21 tooth, but a 90-93 with a t-5 only showed up to 3.55 gears, and no 3.73

anyone have an idea?
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Old 11-25-2007, 11:01 PM
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Boss_Hotrod
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Default RE: speedo gear

Ive got a 21 tooth in my 93. Tranny is an 87 though. Some say to use a 23 tooth one also.

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Old 11-25-2007, 11:04 PM
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Default RE: speedo gear

whats the difference in transmissions...

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Old 11-25-2007, 11:09 PM
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AdderMk2
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Default RE: speedo gear

you need to swap to a yellow 7t drive gear inside the tranny, and a red driven gear 21t on the speed sensor
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Old 11-25-2007, 11:17 PM
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Default RE: speedo gear

ok, thanks man
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