I'm about to do my axel service and bearings. My question is I think the pinion bearing might be bad as well. I have a noticible whine that seems to go away when I let off the gas. Question is can I just live with the wine if I do the axel service and it doesn't go away. The axel ran pretty low on fluid but not bone dry...some still came out when I pulled the drain. There was some metal on the plug, but not a crazy amount. The truck has a lot of miles...240k so I don't want to get crazy with it and have no problem living with the noise.