I’m doing the MJ XJ conversion on my 2WD 88 Comanche using a 4 WD 5 speed 98 Cherokee as my donor. I also want to upgrade the rear axle with a Dana 44. I’ve locate a Dana 44 from a Comanche and the tag on the differential says 3.54. Do I look for a front axle with that same 3.54? Can the ratios vary at all from the front axle to the rear without complications?