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what gears

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Old 01-14-2007, 03:38 PM
boss1984's Avatar
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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 01-14-2007, 05:03 PM
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12bolt is Chevy. You have a Sterling 9.75

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

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Old 02-03-2007, 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 02-03-2007, 08:21 AM
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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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