Hi. I have for sale a used alloy chainstay for a Trek Slash 29er 2017-2020. No cracks or dents. Has signs from usage. Many paint chip. Still covered with protective tape in many places. It fits all Slash 29er frames (with alloy chainstay) in year range 2017-2020. If You don't know if it fits Your Slash just send me a message with photo of You frame.