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?

 

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

 

At 60 I'm reving at 2 1/2 grand.

 

Anyone know...?

 

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.

 

No, I'm not doing anything. 2 1/2 at 60 - 65, no overdrive, no nothing, just driving.

 

send me the vin number and ill send u a build sheet

 

Alright, I sent you it in a PM.