36 Inch Spindle Drive Belt Number ??

[grinchsr 642]

I have a mid 70's 36 inch deck with a tired spindle belt a no model number tag.  Can anyone shoot me a part number for this thing so I can put it back in service.

[gwest_ca-(File Mod) 11,276]

Here is the belt chart.
http://www.wheelhorseforum.com/files/file/1103-chart-belts-mower-spindle-drive-20-pages-492-0392pdf/

Belt dimensions are on the last pages.

Garry