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Grease Nipple in Rear Axle Housing

Posted: Thu Nov 14, 2024 7:39 am
by rstarkweather
I have a grease nipple tapped into the top of my axle housing (the axle housing itself, not the pumpkin). What could this be for? I removed the diff cover to drain and refill the rear axle, and found this little surprise.

Re: Grease Nipple in Rear Axle Housing

Posted: Thu Nov 14, 2024 8:46 am
by Steve Simmons
Maybe someone thought it would be easier to fill with an oil gun from underneath?

Re: Grease Nipple in Rear Axle Housing

Posted: Thu Nov 14, 2024 9:23 am
by rstarkweather
Steve:

That was my initial thought. Though it seems a lot harder than just getting one of those quart size gear oil pumps. But I also wanted to make sure I was not missing something.

Rick

Re: Grease Nipple in Rear Axle Housing

Posted: Thu Nov 14, 2024 12:36 pm
by Duncan M
Unless it is actually a small vent /breather that has been added to the top side...

Re: Grease Nipple in Rear Axle Housing

Posted: Thu Nov 14, 2024 1:28 pm
by AbingdonNerd
I would think that someone added that as an extra vent - in case the small vent hole found on the fill plug became clogged.

If you examine the zerk fitting, it may be that the ball and spring have been removed - to allow easy venting.