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Rear End gears?

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Old Mar 7, 2005 | 08:50 AM
  #1  
92merc's Avatar
92merc
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Tuned
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Rear End gears?

I'm looking at purchasing a really low mileage 2003 XLT SuperCrew 4x4. It has the 5.4 Liter in it with a tow package. But I want to find out for sure what rear end ratio it has and whether it's limited slip. What's the codes I need to look for on the tag? I'm assuming it's either 3.55's or 3.73's. I'm hoping for 3.73's.
 
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Old Mar 7, 2005 | 01:13 PM
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not sure about codes but you could probably look at tag on rearend. itll say right there either 355 or 373 along with 975 i think. there are 2 tags i believe. one is oil recommendation and the other is ratio.
 
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Old Mar 10, 2005 | 09:57 PM
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when i bought my 02 the 373 was an option, every truck i seen on the lot had 355 in it, mine came with 355 and limited slip.....
 
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Old Mar 15, 2005 | 11:03 AM
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If you wnat to see if its limited slip go out and do a break stand and then see if there are 2 lines thats what i did.
 
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Old Mar 15, 2005 | 11:17 AM
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Or you could just check the door sticker. Check the Door decoder article under "Tech Articles" on this website for the codes.
 
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Old Mar 15, 2005 | 11:18 AM
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Texascadillac42
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If its an open diff it will say "3 55" or "3 73" If its a limited slip itll say "3L55" or "3L73"
 
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