Without counting driveshaft revolutions. Im being told that there should be a sticker in my glovebox with build codes but, I looked and mine isnt there. Its an 05 QC Hemi 1500. Its got the trailor tow package.

 

There should be a tag on the differential itself, or you can look at your original window sticker.

 

Yup, your choices are glove box sticker, rear axle sticker or get on the Dodge Truck website and request a build sheet...

I want to say you'd have the more desirable 3.92, I used to think that all with the trailer tow package came with it, but I've been shown that a few with the tow pkg. do have the 3.55s.

 

mine is a 2005 sbqc 1500 4x4 and mine came with 3.92 if I remember correctly

 

Mine is 3.92

 

Well...I dont know what happened to the glove box sticker I just bought the truck used. I looked on the axle and the sticker is un-readable. Ill look for the dodge truck sight and request the build sheet as suggested by hammer. The build sheet would be a cool thing to have anyway I think.....Thanks for all the help guys!

 

if ithas trailer two package it should have the 3.92... if it has factory 20's as well I'm 100% can tell you it's 3.92

 

you may need a wirebrush to clean up the diff cover tag, but it will say there

 

Here is the link to request a build sheet. It only takes (usually) 3-4 days. Good luck. Red

http://www.dodge.com/wccsapp/univers...ull&category=U

 

My tag is on the right rear axle tubing.