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Rearend gear ration

 
  #1  
Old 02-27-2011, 09:02 PM
dgoertel
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Rearend gear ration

i have a 1991 f-150 xlt lariat single cab 4x4 5 speed manual with a 302. I was hoping somebody could tell me what my stock gear ratio is.My vin is 1ftef14n9mpa14444. i searched it but it said nothin on my gear ratio maybe you someone knows a site. an if i change my rear end gear ration. Wont i have to change the front end gear ratio as well?
 
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Old 02-27-2011, 09:18 PM
coffeetwitch666
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look on the tag on the diff.... my first guess is 3.55
 
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Old 02-27-2011, 10:26 PM
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Look for the axle code on the decal on the drivers door pillar.

Ford Axle Code Chart .: Articles
 
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Old 02-27-2011, 10:28 PM
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and yes you have to do front and rear.
 
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Old 02-27-2011, 10:29 PM
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thats a good link and good place to look.
 

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