Jason K: The Belt/Blade Manual and the CPE-2 Parts Manual shows that the 1250 with a 44A deck uses a IH-59971-C1 , 38 x 78" belt. However, given what a P.O. could have used for or done to a mule drive or even which deck, if you really want some help, a photo of the mule drive (as installed) will almost be necessary. It ain't rocket science but we gotta know what 'cha got....Exactly which deck do you have?? Which mule drive do you have?? My crystal ball is clouded up and I can't see your tractor...Vague descriptions aren't gonna give much of a clue either....Help us out, please...
And, yes, those pulleys rubbing the axle will eventually get you a broken axle when the cuts get deep enough...
Myron B
CCSupplyroom