I just bought a rs4 type3 ss and when I got it it was set up for a starter box. I dont have on so I was going to convert it to the rotostart because that is what I use on my savage. So I ordered the parts like the back plates and one way bearing then when I tore it apart there is no pin on the crankshaft for the starting shaft to catch. I was windering what i could do. Thanks Matt