I need to find out how to tell the difference between the DANA differentials. Can anyone help me out with this. I bought a XJ and someone told me that it was a DANA 44 in the rear and someone else told me it was a DANA 35. I would like to know which one I have because I would like to get new gears for it. I know that the front is a DANA 30 so I can get gears for it.