Originally Posted by rics1997
2007 was the first year and they went crazy with the axles. Some early models had the D35 but also there was an option to upgrade to D44 in 2007. The only year that was true. Would love for the D44 Upgrade now. So in the non rubis you could have D30/D35/or D44 so its a hard call.
As far as the gears someone asked about, if you have a Automatic it was 3.73. No 3.21 available for Auto until 2012. The Manual on the other hand came standard with 3.21 with a option of 3.73. So if you have an Auto you have 3.73, if you have a manual you could have either 3.21 or 3.73. You would want to go to Jeep.com and register and get your build sheet to know for sure
also some 07's came with 4.10 with an auto, heres part of my build sheet for my 07 X
DJRS Next Gen. Dana 30 Solid Front Axle
DMFP 4.10 Rear Axle Ratio
DRZS Next Gen. Dana 44 HD Rear Axle