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what gears

   
Old Jan 14, 2007 | 03:38 PM
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boss1984's Avatar
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From: fairview heights,IL
what gears
hey does anyone know what gears are in my 2003 Boss f150 its a 12 bolt and what gears should i put in 3:73/4:10 its an auto 4 speed....thanx
 
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Old Jan 14, 2007 | 05:03 PM
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From: Dover AFB DE / Harrisburg PA
12bolt is Chevy. You have a Sterling 9.75

Post your axle code on the door jam sticker or google "ford axle codes"

Adrianspeeder
 
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Old Feb 3, 2007 | 03:17 AM
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ok, you have the 3.55 rear end. i know. same truck different year. i've about made up my mind to go with 4.10s, just to help me get down the track a little faster.

really depends on your mods
 
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Old Feb 3, 2007 | 08:21 AM
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From: Dover AFB DE / Harrisburg PA
There were some options on gear choices. Only way to know for sure is from the axle code or by inspection.

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