In order to change the lower Control Arm bushings, remove the lower Control Arm, secure it with a vice. Apply high pressure lubricant (J 23444-A) or equivalent to the nut (J 21474-19) thread. Assemble the bushing removal tools, such as nut (J 21474-19), the remover/installer of front Control Arm Bushing set (J 41397), the receiver of lower Control Arm bushings remover/installer (J 41397) and j 21474-18. Remove the front bushing from j21474-18; then disassemble the tools by tightening j21474-18. Next, put together the bushing removal tools with j 21474-27, remover/installer from front Control Arm Bushing set (J 41211), receiver from front Control Arm Bushing set (J 41211), and nut (J 21474-4). Creep wrench j 21474-27 to some point of the bushing at the rear of Control Arm, then disassemble tools. For installation, push the rear bushing in the Control Arm and coat the threads of j 21474-27, with high pressure lubricant (J 23444-A) or equivalent. Assemble the bushing installations using the j 21474-27, the receiver/installer from front Control Arm Bushing set (J 41211), and receiver from the front Control Arm Bushing set (J 41211), and nut (J 21474-4). Tighten j 21474-4 until the rear bushing is completely inserted in the Control Arm and then remove the tools. Lubricate outer casing of front bushing as well as insert it into the Control Arm and attach the bushing installation tools with nut (J 21474-19), the remover/installer from lower Control Arm bushings remover/installer (J 41397), the receiver from lower Control Arm bushings remover/installer (J 41397), and j 21474-18. Tighten j 21474-19 until the front bushing seats to the Control Arm fully and disassemble the tools and install the lower Control Arm.