Okay, this is what I did. I took out the pivot bolt so I could look into the space where the zerk allow grease to go. There is a very tight tolerance there, and it only accepts a little grease.
Do this, and be careful not to move the Jam nut. Use only the outside most nut and remove it. Hook your grease gun to the zerk and blast some in. It will start to come out of the hole for the pivot bolt. When you put the pivot bolt back in, it will push the grease back out of the zerk. But at least that way, you'll know you got grease in there. What I will do from now on, is to add some grease, drive a bit, and then do it again just to assure that what I first put in got distributed well.
Now in all of this, I discovered that I was not getting a good greasing in the right side steering cylinder pivot. I took the zerk out, spayed inside with PB Blaster and cleaned around in there to try to remove any hardened grease of whatever may have been blocking it. I then blew it out with high pressure air to dry up the excess and then replaced the zerk. I could get enough grease in that I saw it start to come out around the top, so that's good enough. On both sides you should be able to get grease to come out around the top and sides.
I had never had so much trouble getting these to grease before!
If you need to ask me anything, send it to my e-mail.
John