[dudedudeness]

I just did my whirlpool, 10 yrs oldish, (though Im sure less time with a leaking housing would be the same ). The impeller should come off after you unscrew the piece in front of it, but Im telling you man, I battled with that thing and after talking to some parts places, found out mainly their purchased together when replacing. The only way your going to pinch any pennies on this one is if you take off the drain valve cover off, save any parts in shape there, take off the piece before the impeller (disk mount), screws off. Because I tell ya, even when you break open the pump housing, ( I suppose unless you try to cleanly cut it apart on the seam, and then re-glue it back again when your finished, the impeller and all the parts after it, are rusted and locked on man, takes pounding and breaking them off. Good luck.