Today we're going to take a look at the Fulton drive-in grease cap with the 2.333 outer diameter. This grease cap will tap onto the end of your hub on your axle. It protects your wheel bearings from any dirt or debris getting in there that would destroy your bearings. It's a 16-gauge steel construction. It has a nice corrosion resistant zinc plating over the whole cap. Again, this grease cap is… see more >