SPL Parts Rear Lower Control Arm Bushing Set - 2015-2023 Ford Mustang (S550)Rear Lower Control Arm Bushings for the 2015 2023 Ford Mustang (S550) replace the mushy factory bushing in the rear lower control arm. One of the bushings from the factory is spherical, while in the other location Ford used a normal rubber bushing. This can create wheel hop under launch, as well as toe and camber change under roll, all of which are undesirable. We replace the rubber bushings with a very large spherical bearing, ensuring longevity of