In 2015, Moog changed the design of some of their ball joints. The new design used on select ball joints, including some pre-installed in their control arms, have an integral dust boot and no longer uses the conventional external boots.
This change was made to provide an easier installation however it maintains the same level of performance you have come to expect from Moog. Ball joints made with the new design can be installed on the same vehicle along with the older design with no problem.
