Gordon L Greenwood , IN February 25, 2015 The plastic spline in my rotor assembly was stripped out I ordered the new part from you and the new rotor assembly came with a metal spline which looks to be much more durable. The repair was very easy. It took less than 10 minutes after watching your youtube video. I found your videos very helpful and watching them help me avoid replacing the wrong parts!. Thanks for your help and quick shipping. 40 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes