* possible stupid question, but hell *
So I had a kingpin put under my F250psd about a year ago. I figured it was time to do some lubin'. when i started pumping in the top kingpin cap...i just kept pumping and pumping.... how much should be in there? should i keep pumping until it squirts out the zirk? Seems like theres nothing in there? or is a few pumps alls it needs?

Filler up!!

Will do....but makes me wonder if the company that did the rebuild even put grease in there...a year without grease in there....hnmmmm