Sherry, the canceling cam has 2 little bumps on it that hit the turn signal switch assembly. When the turn signal is on, the top half of the switch (plastic) swivels on a pin and is spring loaded. When you turn the wheel back from a turn, the bumps should contact the plastic switch part that swivels and the spring will pop it back. If the cam is installed correctly in a stock steering wheel, I would look at the turn signal switch as needing some help or replacement.
Everett, whats a posthetic device for t/s?
Kevin
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69' SS-350 Convert, M20, 3.55 posi. Totally Disassembled & in boxes (I'm working on it!)
69'(Hugger Orange -originally, Burgundy now) Z-21 Convert 327/PG, Driver
[This message has been edited by KevinW (edited 06-21-2001).]