I have a chance to buy a Cherokee donor/parts vehicle. I am looking for one with an 8.25 or a D44. The one I found has a 175mm diff, I cannot get to it to see it, but call the dealership and that is the diff the parts guy said would be in the rear. How do I know what diff this is as none of the stock Cherokee axles had a 175mm ring gear, the D30 is listed as a 186mm Axle.