I tried those shoes I ordered. They just are not right. The radius of the shoe is bigger than stock, and the shoe itself is longer. I probably could get it to work on the brakes, but with the clutch, it needs the correct radius to sit on the hub properly.
Picture 1: As delivered with springs
Picture 2: New shoe in back, stock in front. New shoe 1/8" wider, which would have been easy to fix
Picture 3: Sock shoe on top, new on bottom. Notice how much longer new shoe is. I belt sanded this down to close stock length
Picture 4: New on left, stock on right
Picture 5: New shoes on clutch. You can see here they just don't fit right. The radius is too big, and the shoe is too long.
We will call those a failed experiment! I know there are some out there that are truly a 5" radius: if I could match up a pair in person I would give this another shot. I know Bill Miller had found some, but that company is no longer around.