Part number for belt tension spring?

[JackinVirginia]

Does anyone know if there are different types of belt tension springs on an MTD Cub deck? My deck has only one number plate: 44U1111. I don't have a manual for the deck; it is from a CC 1860. Looking for part number.
Jack

 

[7254t]

the part num for torsion spring is 732-3009