Uni-ball ends are used on 3-point hitches on tractors. They are huge and heavily greased. In no time at all, they become as loose as sauce squirting out of a sick cat recently throwed under a door to gauge the size of the draft. (I prefer my metaphors heavily mixed.)
Carl

1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission