5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

When you change to 3.73s

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Old 07-06-2006, 07:38 PM
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87 STANG
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Default When you change to 3.73s

does it throw off your speedo.
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Old 07-06-2006, 07:39 PM
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sdmaker
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Default RE: When you change to 3.73s

yes, you need to change the gears on the speedo cable to correct it.
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Old 07-06-2006, 07:39 PM
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5IVE.OH
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Default RE: When you change to 3.73s

Yes it does, you can order a new speedo gear to correct it though. C4OZ-17271-A Is the part number, about 12 bucks.
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Old 07-06-2006, 07:39 PM
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P Zero
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Default RE: When you change to 3.73s


ORIGINAL: sdmaker

yes, you need to change the gears on the speedo cable to correct it.
+1
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Old 07-06-2006, 10:01 PM
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white93 GT
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Default RE: When you change to 3.73s

i got mine from a dealer for 5 bucks

got an ex that works n the parts department [:-]
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Old 07-06-2006, 10:35 PM
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drhoward
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Default RE: When you change to 3.73s

sorry to hijack your thread here, but does your speedo being out cause any other problems (other than added allot of extra km's), one of the mechanics I took my car to said it can cause your computer to act up, I have a 94 gt by the way

Thanks
Kev
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Old 07-06-2006, 10:37 PM
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sdmaker
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Default RE: When you change to 3.73s

on some cars it can cause problems, especially when making big changes in gear ratios, not sure if thats the case on mustangs or not though.
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Old 07-06-2006, 10:42 PM
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drhoward
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Default RE: When you change to 3.73s

Ya I can't say I have really noticed on mine one way or the other, I know it felt alot faster after the gears were installed but it may run better with the proper speedo gear installed. I guess I will just have to switch them and find out

Kev
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Old 07-06-2006, 10:48 PM
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OneFine89Mustang
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Default RE: When you change to 3.73s

yes
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Old 07-06-2006, 10:49 PM
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93Mustang5.0
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Default RE: When you change to 3.73s

my speed is about 10 mph off but other than that i dont have any problems.
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