Chassis: AWD family (MA-010, MA-015, MA-020, MA-030...etc.) and MA-03F
Provide two size of shaft pin to solve the problem of that different inside diameter of different materials Rear Hub, for example, original plastic Rear Hub and R246 aluminum-alloy Rear Hub.
(*This new package set is released after April 2017.)
More stronger lower arm, make the actions clearly.
Reduce the problem of deformation.
