About ten years ago I had to rebuild my PTO clutch on my 149. I recall the center wear button was worn out. So I got the wide frame kit and afterwards I couldn't get the fingers and springs to stay in place for more than a few minutes of use. Maybe my bronze button was hitting off center and causing the steel button to knock one of the three fingers out of the groove? So after going through two wide frame kits I decided to try a narrow frame kit.
What I found is that the bent tips of the NF kit springs helped to keep the three fingers and center button in place. These bent spring tips cannot go any further than the inside edge of the PTO pulley, but the flat tips of the wide frame springs can slide across the top edge of the PTO pulley.
The WF gauge will be in tomorrows mail to you.
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