I measured the pinion drag with a torque wrench and it is the same as the Dana 60 that is in the car so no difference there. I haven't compared weight yet but I'm pretty sure the 9 inch is a few lbs lighter than the S60. The 9 inch did cost a bit more than a S60 but not enough to make a difference. The S60 is easier to work on than an original Dana 60, but the 9 inch is even easier. The 9 inch had the gear ratio that I wanted, the Dana 60 is bit limited for gear choices. I'm going to sell the narrow S60 that is currently under my Duster so I'm glad to hear that there are still Dana 60 fans out there. That will make it easier to sell the one I have.