I just purchased a set of D44/4:10 for my 2009 X, and wondered what my axles are worth. I was going to keep them but I have a buddy that wants them. I have no idea what a good price is. They have 78,000 miles on them.
3.73 and 35's with the pentastar seem to be an ok match, probably why that guy snagged them. My 2009 with the 3.8L and 3.21's on 31" tires are terrible and I have/had engine ping when I'm under load. That combo seems to over torque my engine. I rarely saw 5th gear and never used 6th. I didn't want to dump gear money into a D30, just seems like a weak axle. However, that d44 rear should have some value, I just don't know where to start. Guy wants the set