SuperPro Front Control Arm Lower-Inner Rear Bushing Kit | 2010 Subaru Outback (SPF4863K)Superpro Front Control Arm Lower Inner Rear Bushing Kit 2010 Subaru Outback Part #: SPF4863K Overview The SuperPro Front Control Arm Lower Inner Rear Bushing Kit is designed to restore and enhance the handling and stability of your 2010 Subaru Outback. Over time, rubber bushings in the control arms can wear out due to age, mileage, and driving conditions, leading to compromised wheel alignment, increased tire wear, and less precise steering response.