This is topic please help changed gear ratio..speedo not reading actuall mph in forum Tech Talk at Northern California Ford Owners  .


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Posted by 87LXblackpearl (Member # 10409) on :
 
what do i do now?? just swaped out my gears now mph is off what do i do any help?
 

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Posted by moeofit32 (Member # 10393) on :
 
u have to swap the speedo gear looke it on they have them on 50 resto
 

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Posted by MauriSSio (Member # 9943) on :
 
what were your stock gears and what did you change to?
 

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Posted by MauriSSio (Member # 9943) on :
 
what type of transmission??

if t45/T5 u need these- http://www.summitracing.com/parts/SDA-392STE17271D/
if aod/aode- http://www.summitracing.com/parts/SDA-392STE17271J/

they go on the side of the transmission towards the back (tailshaft)
 

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