I have a an old Scag SSZ 22CV with a 52" deck. The belt for the hydro pumps broke and I got another but its too long. Ive double checked part number 48760 and its the right number. Ive compared the belt length on other brands of belts that cross reference this number and they are the same. I'm not routing incorrectly as there is only one way it will work. It starts with the tensioner pulley at the dop, drops down to the pump pulleys then 90* back to the motor shaft pulley. The belt is long so long I can get almost wrap it arount the tensioner pulley twice. I cant figure out what I'm over looking here? Help is greatly appreciated.