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How do I find out my gear ratio?

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Old Apr 15, 2007 | 12:49 AM
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Default How do I find out my gear ratio?

I have a '05 Ram 3500 dually, with the 4 speed transmission. I don't know where to look on the axel or dif. to find out what my gear ratio is, where do I look for it, maybe somewhere other than the dif. or axel?
 
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Old Apr 15, 2007 | 01:01 AM
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Default RE: How do I find out my gear ratio?

normaly there is a build sheet in the glove box, however sometime in 05 they did away with it.

the only way to realy tell is 1, get a build sheet, or 2. what kind of engine RPM's are you running at 60mph
 
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Old Apr 15, 2007 | 01:19 AM
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Default RE: How do I find out my gear ratio?

At 60 I'm reving at 2 1/2 grand.
 
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Old Apr 16, 2007 | 05:34 PM
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Default RE: How do I find out my gear ratio?

Anyone know...?
 
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Old Apr 16, 2007 | 05:46 PM
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Default RE: How do I find out my gear ratio?

You are in overdrive with the converter locked right??? Those numbers are too high for the available gearing from the factory. I have an '05 with the 4 spd auto, with 3.73 I run 2000 rpm at ~70 mph even a 4.11 should only be running 2200 at ~70.
 
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Old Apr 19, 2007 | 06:33 AM
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Default RE: How do I find out my gear ratio?

No, I'm not doing anything. 2 1/2 at 60 - 65, no overdrive, no nothing, just driving.
 
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Old Apr 20, 2007 | 06:27 PM
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Default RE: How do I find out my gear ratio?

send me the vin number and ill send u a build sheet
 
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Old Apr 20, 2007 | 11:29 PM
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Default RE: How do I find out my gear ratio?

Alright, I sent you it in a PM.
 
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