I have a 2004 Titan and managed to keep the rear diff problem at bay for almost 200,000 miles! There's a positive spin. But now a spider gear broke with the horrible banging while turning. I need to drive the truck home--couple hundred miles. Is there a way to remove broken gear and use 4x4 as front wheel drive? Or disconnect drive shaft, devise a plug to keep oil from leaking out? I understand this is not advisable but is it possible?