The part 3953062 is a 6 pad clutch, the other a 3 pad. Whirlpool went with the 3 pad to save their butt as problems with cheap brake shoes jamming caused expensive warranty repairs to replace motors and couplers. Now the clutch just slips a lot when there are problems, but wears out real fast.
If you are sure the brake shoes are "good", I would go with the 6 pad clutch as it will last longer. You can check the brake shoes by referring to my sticky "Replacing direct drive washer brake shoes"