LG Washer

I am planning on replacing the bearing/seal in my LG front load washer #WM2688HWMA. We have had the washer dryer combination for 7+ years and have a few questions before we start. Are there any other parts that we should consider replacing while the machine is apart? Are there only 1 bearing and 1 seal that needs to be purchased? Any suggestions or comment as to things to look for as we dissassemble and reassemble the machine?