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.

Speedo gear

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Old 04-25-2007, 08:13 PM
  #1  
NYMustang50
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Default Speedo gear

I got an AOD fox mustang 89. Im getting 16 in rims and im putting 4.10's in the rear what speedo gear will I need and will my speedo still be off?? And by how much.
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Old 04-25-2007, 08:23 PM
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Stanpower
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Default RE: Speedo gear

speedo gear.
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Old 04-25-2007, 08:26 PM
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AdderMk2
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Default RE: Speedo gear

there is no way to correct an AOD past 3.55's.... you will be off no matter what you do
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Old 04-25-2007, 08:40 PM
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NYMustang50
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Default RE: Speedo gear

seriously... damn. ok so lets say i do put 4.10 and I find out the difference in speed at like 60 can i just subtract that # from what my speedo says and that will always work??
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Old 04-25-2007, 08:41 PM
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AdderMk2
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Default RE: Speedo gear

ORIGINAL: nymustang50

damn... this sucks.
blame ford.... they are the ******** that machined the 8T drive gear onto the output shaft in the AOD
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Old 04-25-2007, 11:02 PM
  #6  
NYMustang50
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Default RE: Speedo gear

Why does steeda have one for my car then?? OR what if my car doesnt have the stock transmission in it. All I know is that I had a remanfuctard transmisssion put in my car since the old one the od blew up.
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Old 04-25-2007, 11:07 PM
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AdderMk2
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Default RE: Speedo gear

stock or not... AOD's CAN NOT BE CORECTED FOR ANYTHING MORE THAN 3.55 GEARS

either listen... or find out the hard way
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