OK if you only slipped it a couple times it is much more likely you may be able to save what you have. Rough the metal plates just enough to break the glaze if any is present. At 45,000 miles you may need new plates depending on how much you slip your clutch when starting or some guys sit at stop lights and slip it rather than hold the break. (bad idea) If your cable was out of adjustment and the clutch was grabbing when disengaged would also cause wear. So as you see there are many factors that could play into the question. Oil could be another variable. Only way to know for sure if just roughing the metal plates and heavier springs would do the trick is to disassemble and check everything for wear. Any of us could say sure you will be fine or no way with that kind of mileage you need plates and either one could be correct depending on the above.

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