I have a 2007 sahara 2dr jk. I have been think about getting gears since i have the 3.21 factory but i cant seem to find out whats in the rear. I know its dana 30 up front but not sure about the rear. I read some of the 07's had a dana 35 in the rear and some early 08's. I got mine right when they came out. I called 2 dealers and the first was unsure and the second told me that they were not calling it a dana in the back but a mb44 or something like that i didn't understand. i am stupid with this stuff and new to the forum and was just looking for some help. any 07's not have the dana 44 in the back but maybe dana 35 or something different?

 

If you still have your window sticker, it should list both axles. If not, get your VIN number and send it in. They'll get you a build sheet. (haven't done this, but I've read you can find a link on the Jeep site to do it.)

 

 

check the axle for a casting stamp

 

is the stamp easy to see? i will check it and i still have my window sticker but it just tells me what gears are in it

 

on the measurment chart which i really appriciate am i just measuring left to right?

 

easiest way to tell is look at the shape of it, the chart riverz posted should help, the 35 is an oval round , I believe it was JUST early 07's that got stuck with the 35.

 

well its not oval shaped like the 35 in the chart but i not lucky enough for it to end up being a 44 so i must be looking at it wrong

 

and the stamp didnt actually say DANA 35 OR DANA 44 it had a series of numbers and letters but meant nothing to me

 

Here are some more pics and drawings


http://project-jk.com/jeep-jk-tech/j...er-axle-basics

DANA 35
Dana 35 rear axles have a 7.56″ diameter ring gear and only showed up on a few 2007 Sahara and X model Jeep JK Wrangler 2-Doors

Guess the 4door guys got lucky