I have a 05 2500 quad 4x4. I'm trying to figure out what the ratio in the axles is. Older dodges used to have it stamped right on the axle housing but I can't find the ratio there on the 05. I'm pretty sure it's in the VIN but I don't have the codes to be able to tell. Anybody know how to get the answer short of pulling the covers off, counting the teeth n dividing?

 

I'm pretty sure it is not in the VIN, but you can request a build sheet from Dodge or a Dodge Dealer by providing the VIN to them, and the build sheet will have that information on it.

 

Here's a link to decipher your VIN, but Pyro is right, it's not in the VIN. http://www.lmctruck.com/icatalog/de/full.aspx?Page=47

 

Gear ratio or any other options will not be able to be deciphered from the vin #.
Unlike Dana axles, Chrysler Corporate (AAM) axles do not have the ratio stamped, but rather placed on a tag affixed to the rear axle. If this is gone, it is also on a sticker inside your glove box.
If you strike out there, get on the Dodge Truck site and request a build sheet. It's nice to have, even though I bought my truck new and have the original window sticker, I requested one for it.

 

Just get a build sheet from dodge. I got one after the original window sticker grew legs and walked out of the glove box.....seriousley it did!

 

You can figure it out from the tach indicator and the speedo, but that's a pain. You can also jack up the rear axle, turn the wheels and compare axle revolutions to driveshaft turns.

 

THAT'S what I saw! I thought it was just a piece of paper. Wondered how a piece of paper could grow a thumb.

 

Mine grew a whole hand! Then gave me the finger and dissappeared...

 

Or you can PM me the last 8 digits of your VIN and I can tell you what you wanna know....