Product review (5 stars): That's what I'm talking about
My very old unit started moaning and screeching during wash.  Disassembling and cleaning the food chopper did not solve it.  So I installed this, following Whirlpool's original maintenance sheet and Youtube.  The only difficulty was keeping it in place to secure the three latches.  With the dish liquid lubricating the rubber seal, as recommended, I pushed down on it mightily and the whole thing popped back up.  So after much cursing at it, I built a wooden brace (nearly 28 inches long) to hold it, then tipped the washer on its back to complete the reassembly.  It is working fine.