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Axle ratio from VIN?

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Old 08-10-2010, 08:44 PM
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Axle ratio from VIN?

I am contemplating buying another Sport-Trac. It is an '04, VIN 1FMDU77K34VAxxxxx. The one I have now has a 4.10 ratio and doesn't get the mileage that I would like. Can you get the axle ratio from the VIN I posted? I would rather not buy another one with the low gears.
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Old 08-11-2010, 06:31 AM
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steve.mckellop
Does it not have a Vehicle Certification Label on the door?
Axle codes are:
42 — 4.10 ratio, non-limited slip
46 — 3.73 ratio, non-limited slip
D2 — 4.10 ratio, limited slip
D4 — 3.73 ratio, limited slip

Did you try taller tires to raise the final drive ratio? I think 265/75R16's will fit without much of an issue. Higher gearing does not always mean better mileage either..........

I have 3.73's and wish I had the 4.10's.
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Old 08-11-2010, 07:20 AM
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It's about 3 hrs. from me and I haven't gone and looked at it yet. I'm not terribly worried about the mileage of the one I have now and have done nothing in an attempt to improve the it. My daughter just totaled her car and I was contemplating letting her have it and buy a newer one for my wife. I was hoping to get one with the OD transmission and higher axle ratio and hopefully higher MPG.

I double checked the VIN and noticed that I had it wrong. The correct one is 1FMDU77K34UA28844.
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Old 08-17-2010, 01:40 AM
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Call any ford dealer with the vin and they can tell you, just ask for parts, and tell them you need a ring and pinion for that vin and ask what ratio it is.
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Old 08-17-2010, 06:32 AM
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The parts department will tell you to go read the axle code on the VC label and call back.
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