Rear diff inner oil seal and outer rubber oil seal question

Good afternoon all. I have a very slight leak in my rear passenger diff seal. Not sure if it's the inner seal or outer rubber seal. Yoshiparts shows a Type A and Type B for each. Wondering if anyone knows which are the correct ones for my '96 super custom. Gonna be replacing both seals and the o rings once I find out which are the correct ones. Thanks in advance for any help!