sickle bar question

[dav 2]

I have 2 sickle bars. On the frame that carries the drive pulley, there is a number cast into the metal. I don't know if it is the part number or a casting number. One has the number 101100. The other has 101029 in the same place. Can anyone tell me if these are different models or the same?

[ehertzfeld 1]

Those should be casting munbers. Without pictures Im sure not meny people will be able to give you model numbers. But you could look at other pitures on the Simple tractors site to get a year. That mite narrow it down. Elon

[gregc 3]

I believe those numbers are part numbers. Probably different models. Here is a parts manual that should help you: http://www.simplicitytechpubs.com/6767PRINT/PDF_files/TP_400_3364_00_AT_S.pdf