So After a couple searches I found my draw bar where I put it so I could find it easily.
I believe my L2501 is the same as your tractor just a different engine? It is 23-11/16 long x 2 x 1-1/4 thick.
3 holes appear to be 13/16" at 1-5/16, 7-7/8, and 14-3/16 centers. 4th hole is 11/16 located at...