Originally Posted by Felsengleiskette
i thought only the rubicons have D44's
The Unlimited comes with a rear Dana 44, and a rear Dana 44 to replace the standard Dana 35c rear axle is optionally available with TJs that have the 4.0L engine.
If the cover over the differential has a pure oval shape and it has a black plastic snap-in cover over the lubricant fill hole, you have have the standard Dana 35c axle. If the cover is stop-sign shaped and it has a threaded steel bolt in the lubricant fill hole, you are fortunate to have the stronger optional extra-cost Dana 44 rear axle.
No matter what axle you have in the rear, your front axle is a Dana 30.