Dirt King lower arm ball joint cups are precision machined in house from 1026 steel. We hold +/- .0005 on the press fit of the ball joint cup bore allowing for a perfect press fit. Sold individually.

When using Ball Joint Cup DK-25A60158 on Toyota 4Runner or FJ Cruiser lower control arms, installation requires the Ball Joint Cup Spacer DK-CSB500050-UC to ensure proper fitment. Failure to use the spacer may result in improper seating or damage during service