OK I have swallowed my pride, how does one go about mounting a chain slider on a 78 DT250? Purchased this bike without one. On the Microfiche it looks like there should be a small mounting bracket on the bottomside of the swingarm, mine doesnt have one. Nothing looks broken, swingarms look the same, oddly though my zerk fitting is on the bottom, microfiche shows it on the top. Anybody got pics of one mounted?