It can be, but its typically when they are kept on lifted trucks, as it puts the ball joint out of its range, and can sort of pry itself apart in that situation.
If you are stock height still, and all is good and tight, then they are fine and continuing to do their job.
If you are lifting or leveling the front, then its best to replace them with higher caster aftermarket units.
If you are stock height still, and all is good and tight, then they are fine and continuing to do their job.
If you are lifting or leveling the front, then its best to replace them with higher caster aftermarket units.