You need to align the flat edge of the bushing flange to the mark in the control arm, ensure that the flat edge of the bushing flange is 30 degrees from the centerline of the lower control arm and ensure that the thin slot in the bushing is facing outboard, insert the bushing into the control arm and assemble the following bushing installation tools: J 21474-27, J 21474-13, J 21474-5 and J 21474-4, and tighten J 21474-4, disassemble the bushing installation tools and install the lower control arm.