I have a 1998 mxz 670 121x15x.75 track and I have a 1.25 track off of a 1997 polaris xlt 600 witch I believe is also a 121 will it work on my mxz or is the pitch different if some could help me that would be great

As long as the holes are the same amount on both tracks it should,and the pitch are equal it should common track 121 15