Original fine spline input shaft from a rockcrusher. Teeth are all in good shape. Have some markings please see pics I tried to get a good pic of what I am talking about. Inner bearing area is in great shape as are the locking teeth. Other input is just there for comparison purposes and IS NOT included in the auction (it's a m-20 anyways) I can and will take more pics of the teeth of your interested please ask either pm or text 55932l4O96 and I'll shoot more pics. Thanks and best of luck