Whirlpool Agitator Stripped?

I’m not sure of the age since we bought it used.

The washer agitator plastic upper cone appers to be stripped or disconnected somehow. It seems like it catches part time, and slips the rest of the time. I don’t know how to disassemble it or anything. Please help.:confused:

You probably need to replace the agitator "dogs". Here is the kit and it has instructions with it.

AP3138838