Can't find my gear ratio

FordGirl514 · #1 (**permalink**) 05-07-2008, 05:31 PM

I'm trying to find my gear ratio so I can get the right tunes for my truck but there is no digit before the 73, and I'm not sure what 420 means. Any ideas?

**SMKSTAX** · #2 (**permalink**) 05-07-2008, 05:38 PM

Your axle code might be on the sticker on your drivers door jamb.

FordGirl514 · #3 (**permalink**) 05-07-2008, 05:40 PM

under axle in the door jam it says 41

**bigcountrysg** · #4 (**permalink**) 05-07-2008, 05:44 PM

Code 41 is the following.
3.73 conventional non-possitraction.

Automotive What is my Ford rear end ratio, do I have positraction

**Raul@Stealth Automotive** · #5 (**permalink**) 05-07-2008, 05:44 PM

i believe its 3.73 i see 75 right next to the bolt which leeds me to believe the rest of the description is under the bolt lol

Last edited by Raul@Stealth Automotive : 05-07-2008 at 05:48 PM.

FordGirl514 · #6 (**permalink**) 05-07-2008, 05:45 PM

Thanks for your help

**bigcountrysg** · #7 (**permalink**) 05-07-2008, 05:47 PM

google works wonders. Your welcome.

**SMKSTAX** · #8 (**permalink**) 05-07-2008, 05:48 PM

Axle code 41 is a non posi 3.73. This is what my 04 loooks like and i have a limited slip 3.73:

Check it out at this link: Automotive What is my Ford rear end ratio, do I have positraction

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