Gear Ratio - Ford Powerstroke Diesel Forum
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Old 01-05-2011, 04:48 AM
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Gear Ratio

Ive been searching around and i cant see where it tells me the gear ratio of my truck.

I am about to order my programmer and since i have larger then stock tires and wheels they need my gear ratios.

Where can i find that info and be sure i give them the correct numbers?

Thanks
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Old 01-05-2011, 07:13 AM
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Quote:
Originally Posted by mmandley View Post
Ive been searching around and i cant see where it tells me the gear ratio of my truck.

I am about to order my programmer and since i have larger then stock tires and wheels they need my gear ratios.

Where can i find that info and be sure i give them the correct numbers?

Thanks
I believe you can take (0r call)your VIN number to a dealer, and the should be able to tell you.
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Old 01-05-2011, 07:28 AM
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Humm..ok ill do the dreaded and call my local Ford dealer..
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Old 01-05-2011, 07:31 AM
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post up your vin and I will get it for you.
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Old 01-05-2011, 07:33 AM
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Ok cool man thanks I'll get it and post it a little later this morning
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Old 01-05-2011, 09:06 AM
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Driver's side door there is a sticker there with the weights, tire sizes etc. Towards the bottom there will be a column labeled "axle". That will be your ratio. 3L being pretty much the most common, 3.73 limited slip. I don't remember off the top of my head what the 4.10 ratio listing is.
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Old 01-05-2011, 09:15 AM
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Ah ok cool thanks. Am i correct to assume the front axle is the same as a rear?
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Old 01-05-2011, 09:35 AM
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On your door sticker look at the code under Axle like in the pic below. If you have a 3L code it's a 3.73 with a limited-slip in the rear. If your code is different someone here can probably tell you what ratio you have. Also, your front and rear ratios will be the same.

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Old 01-05-2011, 09:44 AM
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Ok thanks guys mine says 3L so it's a 373 now I can place my order for my programer and thermocouple setup and start my mods
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