On the differential side right before i was about to install my drive shaft i was wondering if this much movement or any was ok and also that the head slides in and out a bit maybe an inch or two making a sticky sound when i do that. Also i'm buttoning up my diff support bar and i got new rubber stoppers that fit between the diff and support bar from nissan but do i need them? I just installed ES diff bushings and wondering if they're thicker than oem because it doesn't look like it will screw in enough for a flush fit. Thanks for any helpful comments posted