Yes any d44 swap is going to require a new DS or modification and hopefully if you get a D44 out of a TJ you can just get the driveshaft with it. If you get one out of a Rubicon it will not work since the Rubicon driveshaft is different.You'll have to change the drive shaft even swapping out a Dana 44 the same year?
Yes. The pinion is about an 1" longer on the d44. If you cant find a d44, many folks will build a ford 8.8. They can be had for cheap, but then you need to weld on brackets for a TJ for it to be "bolt in". Which requires a shop/welder since most folks dont know how to weld. That kind of labor brings up the cost of an 8.8.You'll have to change the drive shaft even swapping out a Dana 44 the same year?