When I got my 56, I replaced or repaired most of the moving parts on the suspension, except the king pins. They are original, but they take grease and when I push and pull on the tires, they don’t move at all. So I’ll keep putting that job off for a while longer.
Lee.
You can put that off as long as you don't have any kingpin movement (I'm guessing that you already knew that).
Apparently someone has greased them on schedule throughout the kingpins life.
The operators manual suggests every 1,000 miles. With the vast improvement in road quality, especially very few dirt roads these days, every 1,000 miles is overkill. I do mine every oil change at 3,000 miles.
