Rear Axle Seal
Mine leaked out years ago. At the time I asked Nissan what damage is being caused if it is not repaired. They said no damage would occur....but that it may sound noisier. Well, by now I'm sure mine is bone dry, but I haven't heard a thing.
LOL, wow they actually said no damage would occur? I mean metal on metal without lubrication can not be good at all. I guess I'll have to check it out and see how much fluid is in my diff or maybe top it off every now and then. I looked up the procedure on AllData and it didn't seem to difficult.
Check if your differential breather is plugged up or seized. I'm not sure what the style of breather is that our cars use, but that needs to be functional or you'll blow fluid out of whatever the weakest link is that's sealing your diff (axle seals, drain or fill gaskets, rust hole in diff, etc).
It has to be above the level of the fluid. Typically they are on the very top of the differential and offset to one side. As I mentioned earlier, I've never actually looked at the setup on how our G's handle this with our diff. Since the car is kind of low, they may have it remotely vented to someplace higher up. In that case you'd see a pipe and\or hose coming out of an upper portion of the differential leading upward somewhere and there would be a breather apparatus on the end of that pipe\hose. A differential breather is typically a little threaded plug with a cap on int that you can jiggle around. There is a spring and bearing usually in there that helps it vent at a certain pressure only.
Last edited by partyman66; Aug 22, 2017 at 09:42 PM.
You can zoom in to this photo and see the electrical tape that is covering the diff breather. It's up top on the left side. The tube runs over the subframe and out, it would be pretty hard for it to plug up.
