I have a OEM track made by yamaha, with a yamaha number on it 8J7-47110-00 that I'm not sure what it fits,nor does yamaha motor.. someone told me John deere, it has 35 windows, 15 wide.pitch is maybe 3 1/2 or 3 5/16..center to center of hole are 8 3/4,the holes (windows) are big, about 1 1/2 X 2 1/4...