odi

Good day folks! I have a question regarding my brothers Fusion. He just changed his tires and his alignment got refused as his right lower control arm is shot (i assume the inner bushing went to hell). Firstly, does anyone have a write up on how to do it? As I understand the procedure is different in 2013+ Fusions compared to the older platform shared with the Mazda6. Secondly, other than calling a dealer to be certain, there are two part numbers that according to part websites fit: GS7Z-3078-B and GS7Z-3078-A . Any difference between the two? Thank you for your help, Odi