Trimming is required on both the driver- and passenger-side lower control arm frame pockets as well as on the diff mount bracket. This is to create room for the differential in its relocated position. The BDS instructions provide detailed information on what and how much material needs to be removed. Some areas have a lot of material removed and some just have minor trimming. Shown here is the front of the passenger-side lower rear control arm pocket after the lower left corner was trimmed. It’s an example of one of the areas that receives minor trimming.