Has anyone have this set up? It look like a standard type of bearing buddy. But the body was just a shell. From the pics it looks like the zerk is permanently attache to the spindle.
Was going to repack the bearings but got stumped when I saw this.
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It looks like a Tie Down Super Lube hub or similar. Here the instructions: http://www.tiedown.com/pdf/c718.pdf
I have it, but not on my boat trailer. on my utility trailer its called accu lube system. and its not recommended for submersible applications. although it does work way better than bearing buddy because It greases the inner and outer bearings equally. just wont keep the water out.