Hello, You are looking at a shock support bracket removed from a 93 Mach 1 670 snowmobile. It is not the original shock support bracket for this sled. Someone put a newer suspension in it. I did some research on a parts fiche and it looks like it may be off a 97 MXZ 583/670 or a 98 MXZ 500. It is in good used condition. Comes as pictured. Pics show condition well. Could fit several years and models but please do your own checking to make sure it will fit your application. If you have any questions please feel free to ask. Thank you!