Product review (3 stars): Seems to work for now - Included documentation is inaccurate
Installed the clutch last night and so far it seems to be working okay.  It came with a one-page document that I will not call instructions.  This document explicitly said that this three-pad clutch is a direct replacement for the manufacturers six-pad clutch.

Choosing the correct spring was very confusing because the documentation was incorrect.  The clutch came with a dark blue spring installed, and a lighter blue spring in the package.  The light blue spring is stiffer than the dark blue spring.  The instructions say that full-sized washers should use the blue spring, and that smaller washers should use the black spring; they also say that the blue spring (for full-sized washers) is already installed, and that the black spring is loose in the package.  Of course, the documentation does not match the springs in the product (documentation says there is a blue and a black spring; product actually had two blue springs).  I changed springs to the light blue, stiffer one for my full-size washer, and so far it seems to be working.