I am looking for ideas for long term MTX storage. Currently they are in my unheated garage. My current procedure is to place 1.75" plugs sealed with RTV in the diff axle seals and overfill with 10W30 oil. Once a year, I take them off the shelf and turn the MTX upside down a few times to coat everything with Oil.
Do you think this is good enough? I was thinking I could fill with heavy gear Oil.